DAS (Direct Attached Storage) delivers faster raw throughput for a single user, but NAS (Network Attached Storage) is the better choice for most Australians who need shared access, remote connectivity, or centralised backup. DAS connects directly to one computer via USB or Thunderbolt and behaves like an external drive on steroids. NAS connects to your network and serves files to every device in your home or office simultaneously. The right choice depends on whether you need speed for one workstation or access for many devices. And in many setups, the answer is both.
In short: Choose DAS if you need maximum single-user speed for video editing, audio production, or large file processing on one machine. Choose NAS if you need shared file access across multiple devices, remote access, automated backups, or media streaming. If you edit 4K/8K video but also need to share files with a team, the ideal setup is DAS on the editing workstation and a NAS on the network for collaboration and backup. For most Australian home users and small offices, a NAS alone covers everything.
What Is DAS and How Does It Differ from NAS?
DAS. Direct Attached Storage. Is any storage device that connects directly to a single computer. At its simplest, a USB external hard drive is DAS. At the higher end, a multi-bay Thunderbolt 4 RAID enclosure with NVMe SSDs is also DAS. The defining feature is the direct connection: one cable, one computer, no network involved.
NAS. Network Attached Storage. Is a standalone computer purpose-built for file storage and sharing. It connects to your router or switch via Ethernet and makes files available to every device on the network. A NAS runs its own operating system (like Synology's DSM or QNAP's QTS), manages its own RAID arrays, runs apps, handles user permissions, and can be accessed remotely over the internet. For a deeper explanation of what a NAS does and why it matters, see the complete guide to NAS storage.
The fundamental trade-off is simple: DAS gives you the fastest possible speed to one machine. NAS gives you intelligent, shared storage for your entire network. Everything else. Price, complexity, use case. Flows from that core difference.
NAS vs DAS. Feature Comparison
NAS vs DAS. Key Differences
| NAS | DAS | |
|---|---|---|
| Connection | Ethernet (1GbE, 2.5GbE, 10GbE) | USB 3.2, Thunderbolt 3/4 |
| Simultaneous Users | Multiple (whole network) | One computer only |
| Max Throughput (Typical) | 110 MB/s (1GbE) to 1,000+ MB/s (10GbE) | 400-2,800 MB/s (Thunderbolt 3/4) |
| Remote Access | Yes (built-in or VPN) | No (local only) |
| Own Operating System | Yes (DSM, QTS, ADM, etc.) | No (relies on host PC) |
| Built-in Apps | Yes (backup, sync, media, Docker) | No |
| RAID Management | Software RAID (managed by NAS OS) | Hardware RAID (onboard controller) or software |
| Power Consumption | 15-40W typical (always on) | 5-25W typical (on with PC) |
| Setup Complexity | Moderate (network config, user accounts) | Low (plug in and format) |
| Price Range (AU, diskless) | $549-$2,000+ (2-8 bay) | $150-$1,200+ (2-8 bay) |
| Best For | Multi-device access, backup, remote work | Single-user speed, video editing, portable scratch storage |
Speed. Where DAS Wins (and Where NAS Is Closing the Gap)
Raw throughput is where DAS has its strongest advantage. A Thunderbolt 3 connection delivers up to 2,800 MB/s (40 Gbps), and Thunderbolt 4 matches that speed with improved daisy-chaining and minimum spec requirements. USB 3.2 Gen 2 tops out at around 1,000 MB/s (10 Gbps). Even a basic USB 3.0 DAS enclosure manages 400-500 MB/s with spinning drives in RAID 0. Faster than most NAS connections.
A standard NAS on a 1 Gigabit Ethernet connection is limited to a theoretical 125 MB/s and a practical ceiling of about 110-115 MB/s. That is the bottleneck for many Australian home and small office networks. For a single user transferring large files or editing video, 110 MB/s feels slow compared to a Thunderbolt DAS running at 700-1,500 MB/s with SSDs.
However, NAS networking has moved well beyond gigabit. Most current-generation NAS units from Synology and QNAP ship with 2.5 Gigabit Ethernet as standard, delivering around 280 MB/s in practice. The Synology DS925+ ($995 at Scorptec) and QNAP TS-464 ($999 at Scorptec) both include 2.5GbE ports. Upgrade to 10GbE. Available natively on higher-end NAS models or via a PCIe add-in card. And you reach 1,000+ MB/s, which closes the gap with USB 3.2 Gen 2 DAS entirely. For more on NAS networking speeds and 10GbE upgrades, see the NAS networking guide.
Tip: A 10GbE NAS with SSDs can match or exceed USB 3.2 Gen 2 DAS speeds while serving multiple users simultaneously. The catch is the infrastructure cost. You need a 10GbE switch and 10GbE network adapters in each workstation. QNAP's QSW-3205-5T is a 5-port 10GbE switch that keeps costs manageable for small setups, and QNAP NAS models with 10GbE built in avoid the need for add-in cards.
Multi-User Access. Where NAS Wins
DAS serves one computer. If you connect a Thunderbolt DAS to your editing workstation, nobody else can access those files unless they sit at that machine or you manually share the drive over the network through the host PC. Which defeats the purpose and introduces the host as a bottleneck and single point of failure.
NAS serves the entire network. A 4-bay NAS sitting in a cupboard can simultaneously provide file access to five laptops, stream media to a TV, run automated backups from three PCs, and sync photos from two phones. User permissions control who sees what. This is fundamentally what NAS was designed for, and no DAS setup can replicate it without adding a server into the equation.
For an Australian small office with 3-10 staff sharing project files, client records, or design assets, NAS is the only practical option. DAS would require either everyone crowding around one workstation or a complex share-over-network arrangement that is slower and less reliable. Check the best NAS for Australia guide for models suited to shared office environments.
Use Cases. When to Choose DAS
Video Editing and Post-Production
This is the primary use case where DAS genuinely outperforms NAS. Editing 4K ProRes or 8K RAW footage demands sustained sequential read speeds that Thunderbolt DAS delivers consistently. A Thunderbolt 3/4 RAID enclosure with four NVMe SSDs can sustain 2,000+ MB/s. Enough for multiple simultaneous 4K streams or a single 8K stream without proxy workflows. No 1GbE or 2.5GbE NAS comes close to this for a single editor. For deeper guidance on NAS and DAS for video work, see best NAS for video editing in Australia.
Thunderbolt DAS options popular with Australian video editors include the OWC ThunderBay 4, the CalDigit T4, and QNAP's TL-D800S (USB) and TL-D1600S (USB/JBOD) enclosures. Expect to pay $600-$1,500 AUD for a quality 4-bay Thunderbolt DAS enclosure before drives. QNAP also offers the TBS-h574TX. Technically a NAS, but with Thunderbolt 4 connectivity it can function as both NAS and DAS depending on how you connect it.
Audio Production and Music Libraries
DAWs (Digital Audio Workstations) like Logic Pro, Ableton, and Pro Tools benefit from low-latency, high-throughput local storage. A USB 3.2 or Thunderbolt DAS with SSDs provides the consistent I/O performance that large sample libraries and multi-track sessions demand. NAS can work for audio storage and backup, but the latency introduced by the network layer makes it unsuitable as a primary working drive for real-time audio production.
Portable Scratch Storage
If you work on location. Event photography, field recording, on-site video production. DAS is the only option. A rugged USB-C DAS enclosure goes in your bag and connects wherever you are. NAS requires a network, power, and a fixed location. For field work, the workflow is typically: capture to DAS on location, then transfer to NAS back at the office or studio for long-term storage and sharing. Photographers managing large RAW libraries can benefit from both. See the best NAS for photography guide.
Use Cases. When to Choose NAS
Shared Office File Storage
Any environment where more than one person needs access to the same files is NAS territory. A 4-bay NAS like the Synology DS425+ ($819 at Scorptec) or QNAP TS-464 ($999 at Scorptec) provides centralised storage with user accounts, folder permissions, and Active Directory integration for offices that run Windows domains. Staff access their files from any computer on the network without managing USB cables or worrying about which machine has the drive plugged in.
Centralised Backup
NAS is purpose-built for automated backup. Synology's Active Backup for Business and QNAP's HBS 3 can pull backups from every PC, laptop, and server on the network on a schedule. No manual intervention required. DAS can only back up the one machine it is connected to. For a household with multiple laptops, phones, and tablets, or a small business with 5-20 endpoints, NAS is the only viable centralised backup solution that does not involve a monthly cloud subscription.
Remote Access and Working from Home
NAS devices offer remote access through relay services (Synology QuickConnect, QNAP myQNAPcloud) or VPN. This means you can access your files from anywhere with an internet connection. Valuable for Australians working from home or travelling. DAS has no remote access capability whatsoever; it only works while physically connected to a computer. Note that NBN connections with CGNAT may block direct VPN connections, making relay services the more reliable option for many Australian households.
Media Streaming and Photo Management
Running Plex, Jellyfin, or Synology Photos on a NAS turns it into a household media and photo server accessible from every TV, phone, and tablet. DAS cannot run applications. It is passive storage that depends entirely on the host computer. If you want to stream a movie to the living room TV while someone else browses the family photo library on their phone, NAS is the only option.
Thunderbolt DAS Options for Australian Buyers
Thunderbolt DAS enclosures are a niche product in the Australian market. Availability is more limited than NAS or USB DAS, and prices are higher due to the Thunderbolt licensing and controller costs. Here are the main categories:
Budget USB 3.2 DAS (under $300 AUD): 2-bay USB enclosures from ORICO, Sabrent, and TerraMaster (D2-320 and similar). These use USB 3.2 Gen 1 (5 Gbps) or Gen 2 (10 Gbps) and are sufficient for basic external storage and backup. Expect 200-400 MB/s with spinning drives. Available from Scorptec, PLE, Mwave, and Amazon AU.
Mid-range Thunderbolt 3/4 DAS ($600-$1,200 AUD): 4-bay enclosures from OWC (ThunderBay 4), CalDigit, and QNAP (TL series). These support RAID 0/1/5/10 via hardware RAID controllers and deliver 700-1,500 MB/s with HDDs in RAID, or significantly more with SSDs. These are the workhorses for video editors and creative professionals. Available from specialist Apple resellers, B&H Photo (international shipping to AU), and sometimes Scorptec or PLE.
High-end Thunderbolt NVMe DAS ($1,200+ AUD): All-NVMe enclosures like the OWC Express 4M2 and Sabrent Thunderbolt 4 NVMe docks. These push 2,000-2,800 MB/s sustained and are designed for 8K workflows and high-speed ingest. Niche and expensive, but nothing else matches the speed for a single workstation. Limited Australian retail availability. Often sourced internationally.
Availability note: Thunderbolt DAS is harder to source in Australia than NAS. Many models are only available through international retailers or Amazon AU marketplace sellers. Check warranty and ACL coverage carefully. Australian Consumer Law protections apply when purchasing from Australian retailers, but imported products from overseas sellers may not offer the same support. Buy from an Australian-based seller where possible.
10GbE NAS. Closing the Speed Gap
The traditional argument for DAS over NAS was speed. That argument has weakened significantly with the proliferation of 2.5GbE and 10GbE NAS networking. A NAS running over 10GbE delivers 1,000+ MB/s. Faster than USB 3.2 Gen 2 DAS and within striking distance of Thunderbolt 3 with spinning drives.
The cost of 10GbE has also dropped. QNAP's QSW-3205-5T is a 5-port 10GbE unmanaged switch that brings the infrastructure cost down to a manageable level for small setups. Pair it with a QNAP NAS that has 10GbE built in (like the TS-873A or higher-end models) and a 10GbE PCIe card in your workstation ($100-$200 AUD), and you have NAS-based storage that matches USB DAS speeds while also serving the entire network.
For multi-user video editing teams, 10GbE NAS is increasingly replacing DAS as the primary working storage. Each editor gets near-local speeds while working from a shared storage pool. No more sneakernetting drives between workstations or duplicating project files across multiple DAS enclosures. The NAS networking guide covers 10GbE setup and switch options in detail.
When to Use Both. The Hybrid Approach
The NAS vs DAS question is not always either/or. Many professional workflows benefit from using both:
Video production studio: Thunderbolt DAS on each editing workstation for active projects (maximum speed for the timeline), with a NAS on the network for project archive, shared media assets, and offsite backup via Backblaze B2 or similar. When a project wraps, finished files move from DAS to NAS for long-term storage and team access.
Photography studio: DAS for tethered shooting and initial culling (fast local access to thousands of RAW files), NAS for the catalogued library, client delivery, and backup. Lightroom Classic can work with a NAS-hosted catalogue over 2.5GbE or 10GbE, but initial import and culling workflows benefit from DAS speed.
Small office: NAS as the primary shared file server and backup target, with a USB DAS connected to a workstation that runs heavy local processing (CAD, 3D rendering, large data analysis). The DAS provides fast scratch storage; the NAS provides everything else.
Home user: For most home users, a NAS alone handles everything. File sharing, media streaming, phone backup, Time Machine, and remote access. DAS only enters the picture if someone in the household does video editing, music production, or other work that demands sustained high-throughput local storage.
AU Pricing. What to Budget
Pricing in Australia reflects the different markets these products serve. NAS pricing is well-established with strong local availability from multiple retailers. DAS pricing is more variable, particularly for Thunderbolt models which often need to be sourced internationally.
NAS Pricing (Scorptec, February 2026)
| Synology DS225+ (2-bay, 2.5GbE) | $549 |
|---|---|
| Synology DS425+ (4-bay, 2.5GbE) | $819 |
| Synology DS925+ (4-bay, 2.5GbE, NVMe cache) | $995 |
| QNAP TS-464 (4-bay, Celeron, 8GB, 2.5GbE) | $999 |
| Drives not included | Add $200-$500+ for NAS HDDs |
DAS Pricing (Approximate AU, 2026)
| 2-bay USB 3.2 enclosure (ORICO, Sabrent) | $80-$180 |
|---|---|
| 4-bay USB 3.2 enclosure (TerraMaster, ORICO) | $200-$350 |
| 4-bay Thunderbolt 3/4 enclosure (OWC, CalDigit) | $600-$1,200 |
| 4-bay NVMe Thunderbolt 4 (OWC Express 4M2) | $1,200-$1,800 |
| Drives not included | Add $200-$500+ for HDDs or $400-$2,000+ for NVMe SSDs |
The entry cost for DAS is lower than NAS. A basic 2-bay USB enclosure costs under $200, while the cheapest worthwhile NAS starts at around $549 for the Synology DS225+. But DAS gives you storage only. NAS gives you storage plus an operating system, apps, multi-user access, remote connectivity, and automated backup. The price gap reflects the capability gap.
Australian NAS pricing is currently running 10-20% above US levels due to lower stock allocations, higher freight costs, and smaller market volumes. DAS pricing is less affected because many enclosures are available through Amazon AU or international shipping at near-global pricing. NAS-grade HDD prices have also risen through 2025-2026. Budget accordingly for drives regardless of which storage type you choose.
NAS vs DAS. Pros and Cons Summary
NAS
Pros
- Multi-device and multi-user access across the entire network
- Remote access from anywhere via QuickConnect, myQNAPcloud, or VPN
- Built-in OS with apps for backup, sync, media streaming, Docker, and surveillance
- Automated backup from every device on the network
- Expandable with DAS expansion units from the same vendor
- 2.5GbE standard on current models; 10GbE available for high-speed workflows
Cons
- Slower than DAS on 1GbE networks (110 MB/s ceiling)
- Higher entry price for a capable unit ($549+ for a 2-bay)
- Requires basic network knowledge to set up and manage
- Always-on power consumption (15-40W, roughly $30-80/year in AU electricity)
- 10GbE requires additional infrastructure investment (switch, adapters)
DAS
Pros
- Fastest possible single-user throughput (Thunderbolt 4 up to 2,800 MB/s)
- Lower entry price for basic USB enclosures ($80-$200)
- Simple setup. Plug in, format, use
- Portable for field work and on-location production
- No network dependency. Works anywhere with a cable
- Lower power consumption (only on when the host PC is on)
Cons
- Single-user only. One computer at a time
- No remote access capability
- No built-in apps, backup scheduling, or user management
- No standalone intelligence. Relies entirely on the host PC
- Thunderbolt enclosures are expensive and harder to source in Australia
- If the host PC fails, the DAS is inaccessible until the PC is repaired or replaced
Common Mistakes When Choosing Between NAS and DAS
Buying NAS for single-user video editing on 1GbE. If you are an individual video editor working with large files on one machine and your network is still Gigabit Ethernet, a NAS will bottleneck at 110 MB/s. A Thunderbolt DAS will be five to ten times faster for your use case. Do not buy a NAS for speed on a 1GbE network. Buy it for access and backup, not as your editing scratch disk.
Buying DAS for a shared office. A DAS connected to the receptionist's PC and shared over Windows file sharing is not a storage solution. It is a workaround that creates a single point of failure (the receptionist's PC), slow speeds for everyone else, and no proper user permissions. Buy a NAS.
Ignoring backup because you have RAID. Whether NAS or DAS, RAID is not a backup. RAID protects against a single drive failure; it does not protect against ransomware, accidental deletion, theft, fire, or the enclosure itself failing. A proper strategy is a NAS for primary storage, a DAS or second NAS for local backup, and a cloud service for offsite backup. The 3-2-1 approach.
Expecting DAS pricing for NAS features. A $150 USB enclosure and a $549 NAS are not comparable products. The NAS includes a CPU, RAM, an operating system, network connectivity, and years of software updates. If you only need a box to hold drives, DAS is cheaper. If you need intelligent storage, a NAS is worth the price difference.
If a repurposed PC running TrueNAS is on your shortlist, our NAS vs Repurposed PC Cost Calculator compares it against a dedicated NAS on total cost of ownership at AU electricity rates.
Use our free NAS Sizing Wizard to get a personalised NAS recommendation.
Can I use a NAS as DAS by connecting it directly to my computer?
Not in the traditional sense. Most NAS devices connect via Ethernet, not USB or Thunderbolt. However, some QNAP models include Thunderbolt ports (like the TVS-h874T) that allow a direct Thunderbolt connection to a Mac or PC, effectively functioning as both NAS and DAS. Synology NAS devices do not offer Thunderbolt connectivity. If you want both NAS and DAS functionality from one device, look at QNAP's Thunderbolt-equipped models.
Is DAS more reliable than NAS?
Not inherently. Both use the same drives and similar RAID configurations. DAS has fewer components that can fail (no network interface, no OS to crash), but it also lacks the intelligent monitoring, health alerts, and scheduled data scrubbing that NAS operating systems provide. A NAS running Synology DSM or QNAP QTS will alert you to a degraded RAID array, a failing drive, or abnormal temperatures. A DAS relies entirely on the host PC's disk management tools, which are typically less comprehensive. Reliability depends more on drive quality, RAID configuration, and environmental factors (temperature, power stability) than on whether the storage is NAS or DAS.
Can I connect a DAS to a NAS for more storage?
Yes. Synology and QNAP both sell official DAS expansion units designed to connect to their NAS devices. Synology's DX517 is a 5-bay expansion unit that connects via eSATA. QNAP offers USB and SAS expansion units (TL-D400S, TL-D800S, and others). These allow you to add more drive bays to your NAS without buying a second NAS. Third-party DAS enclosures generally cannot be used as NAS expansion units. Stick with the NAS vendor's own expansion hardware for compatibility and support.
Do I need DAS if my NAS has 10GbE?
For most workflows, no. A 10GbE NAS with NAS-grade HDDs in RAID 5 or RAID 6 can sustain 400-600 MB/s sequential reads, which is enough for 4K video editing, large photo libraries, and heavy file transfers. With NVMe SSD caching or an all-flash NAS, 10GbE can push close to its theoretical 1,250 MB/s maximum. The main scenario where DAS still wins over 10GbE NAS is 8K RAW video editing or other workflows that demand sustained throughput above 1,000 MB/s to a single workstation. That is where Thunderbolt 4 at 2,800 MB/s still has a clear advantage.
Is DAS or NAS better for Time Machine backup on a Mac?
NAS is better for Time Machine in most cases. Synology and QNAP NAS devices support Time Machine natively. Every Mac on your network can back up wirelessly without connecting a cable. DAS works for Time Machine too, but only for the one Mac it is plugged into. If you have multiple Macs in your household, a NAS lets all of them back up to one central device automatically. The Synology DS225+ ($549 at Scorptec) is a popular entry-level NAS for Mac households running Time Machine alongside Synology Photos and file sharing.
What happens to my DAS data if the enclosure fails?
It depends on the RAID type. If the DAS uses hardware RAID (a controller built into the enclosure), the RAID metadata is tied to that specific controller. If the enclosure fails, you may need an identical replacement enclosure to rebuild the array. If the DAS uses software RAID managed by the host operating system (such as Windows Storage Spaces or macOS Disk Utility), the drives can often be read in any compatible enclosure. With a NAS, the RAID is managed by the NAS operating system. Synology SHR and QNAP RAID arrays can typically be migrated to another unit from the same brand. Always maintain backups regardless of your storage type.
Should I buy a cheap NAS or a good DAS for the same budget?
It depends on your primary need. If you need shared access, remote connectivity, and automated backup. Buy the NAS, even at entry level. A Synology DS225+ at $549 provides more long-term utility than a $549 Thunderbolt DAS for the vast majority of Australian households and small offices. If you are a solo video editor or music producer who needs maximum speed to one workstation and already has a backup strategy, the DAS delivers better performance per dollar for that specific use case. Do not buy a cheap NAS expecting DAS speeds, and do not buy a DAS expecting NAS features.
Need help choosing the right storage solution for your setup? Browse the full NAS buying guide for Australian-specific recommendations, pricing, and retailer advice.
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