8 Best NAS for Mac and Time Machine Backup in 2026
8 best NAS devices for Mac and Time Machine backup in 2026, verified for SMB3 support ahead of Apple's AFP removal. Compare quotas, RAM, and multi-Mac setup.
Comparison Table
| Pick | Product | |
|---|---|---|
| Best Time Machine Integration | Synology DS223 Home & Office Backup Hub | Check price |
| Best for Large Time Machine Archives | UGREEN NAS DXP2800 | Check price |
| Best Budget Pick | UGREEN NAS DH2300 | Check price |
| Best RAM for Multi-Mac Households | QNAP TS-264-8G-US 2-Bay Desktop NAS | Check price |
| Best for Faster First Backup | QNAP TS-216G-US 2-Bay 2.5GbE Desktop NAS | Check price |
| Best Entry-Level Value | Asustor Drivestor 2 Gen 2 AS1202T | Check price |
| Best CPU for Concurrent Services | TERRAMASTER F2-425 | Check price |
| Best for Multiple Macs | UGREEN NAS DXP4800 Plus | Check price |
Prices are approximate. Check Amazon for current pricing before purchasing.
A NAS built for Time Machine has one requirement that overrides everything else right now: it must run Time Machine over SMB3 with Bonjour advertising, since Apple is removing AFP (Apple Filing Protocol) support starting in macOS 27, and any NAS still depending on AFP for Time Machine will simply stop working after that update. Past that non-negotiable, the differences come down to how well each NAS manages sparse bundle growth, multiple Macs on one box, and initial backup speed.
Below are 8 NAS devices we evaluated on SMB3 readiness, per-Mac quota management, RAM for running Time Machine alongside other services, and true cost with drives included, ranging from a $199.99 diskless 2-bay for a single MacBook to a $619.99 five-core 4-bay built for a household running Time Machine on several Macs at once.
6 Criteria to Look For Before Buying a NAS for Mac and Time Machine Backup
Key buying criteria so you get the right fit the first time.
Verify SMB3 support before buying, AFP is being retired
macOS is removing AFP (Apple Filing Protocol) support starting in macOS 27, and a NAS still relying on AFP for Time Machine will silently stop backing up after that update. Confirm the NAS firmware supports SMB3 with Bonjour/mDNS advertising the Time Machine service before you buy or before your next macOS update.
Time Machine's sparse bundle grows automatically, set a quota
Time Machine stores backups in a sparse bundle disk image that expands over time, and a 512GB MacBook can generate 1-2TB of backup history over 3 years. Without a manually set quota in the NAS admin panel, Time Machine will keep expanding until it fills the entire NAS, so set one during initial setup, not after the fact.
Each Mac needs its own shared folder, not a shared one
Using a single shared folder for multiple Macs' Time Machine backups will corrupt the backup history for both machines. Create a separate shared folder with its own quota for every Mac on the network, even if they belong to the same household.
Run the first backup over Ethernet, not Wi-Fi
An initial Time Machine backup of a 512GB Mac over Wi-Fi can take 8-24 hours depending on your router, while the same backup over Ethernet finishes considerably faster. Do the first full backup wired, then switch to Wi-Fi for the smaller incremental backups afterward.
Backups need periodic verification, not just scheduling
Time Machine can appear to be backing up successfully for months while quietly failing to produce a restorable backup due to RAID errors or file corruption. Test an actual file restore from the backup periodically, at least once a quarter, rather than trusting the green checkmark alone.
Drive compatibility warnings on 2024+ Plus-series models are mostly cosmetic
Newer Plus-tier NAS models from some brands show a compatibility warning in the admin panel for non-branded drives, even when those drives, like Seagate IronWolf or WD Red, work perfectly well in practice. Brand-name NAS drives avoid the warning but typically cost 15-30% more; decide whether the warning-free experience is worth the premium for your setup.
8 Best NAS for Mac and Time Machine Backup in 2026
Synology DS223 Home & Office Backup Hub
About this pick
The Synology DS223 offers the most mature Time Machine setup workflow in this list, with DSM's Shared Folder wizard including a dedicated Time Machine toggle that configures SMB3 and Bonjour advertising automatically. Setting a per-Mac backup quota is a built-in option in the same wizard rather than a separate manual step.
As a 2-bay diskless unit, it needs its own drives and RAID 1 configured before it holds real redundancy for your backup history, and 2024+ DSM firmware can flag non-Synology drives with a compatibility warning even though they still work. For a household with 2-3 Macs wanting the smoothest Time Machine setup experience, it's the strongest overall pick.
Best for: Households with 2-3 Macs who want the easiest Time Machine setup experience
Check price on AmazonPros
- +Most streamlined Time Machine setup wizard in this list
- +Per-Mac quota built directly into shared folder creation
- +RAID 1 protects backup history from a single drive failure
- +Best-documented Time Machine troubleshooting resources
Cons
- −Diskless, needs 2 drives purchased separately
- −2024+ DSM shows compatibility warnings for third-party drives
- −Soldered RAM limits multitasking beyond backup duty
UGREEN NAS DXP2800
About this pick
The DXP2800's content-creator-tier CPU handles a large, fast-growing Time Machine sparse bundle without slowing down, which matters if your Mac's internal drive is 1TB or larger and generates a sizable backup history within the first year. UGREEN OS supports SMB3 shares with Time Machine compatibility for macOS clients.
It costs more than the entry-level 2-bay picks here, so it makes the most sense for a MacBook Pro with a large internal SSD rather than a lightly used MacBook Air. Confirm SMB3 is active in the sharing settings before your first backup, since AFP is being phased out across the industry, not just on Synology.
Best for: MacBook Pro owners with large internal drives generating sizable backup archives
Check price on AmazonPros
- +Strong CPU headroom for large, fast-growing backup archives
- +Snapshot versioning adds protection beyond Time Machine alone
- +SMB3 support keeps it compatible as AFP is phased out
- +Handles concurrent backup plus other services well
Cons
- −Priciest 2-bay pick in this list
- −Overkill for a single lightly used MacBook
- −Time Machine setup is less turnkey than Synology's dedicated wizard
UGREEN NAS DH2300
About this pick
The DH2300 is the cheapest diskless 2-bay in this list at $199.99 while still supporting up to 64TB total capacity, giving a single-Mac household room to grow the Time Machine archive over several years without swapping the enclosure. It supports SMB3 shares for Time Machine compatibility through UGREEN's standard OS tools.
Its entry-level CPU and RAM keep it best suited to Time Machine as its primary job rather than layering on Plex or surveillance alongside it. For one Mac's automatic backup on a budget, it covers everything Time Machine actually needs.
Best for: Single-Mac households who want Time Machine backup on a tight budget
Check price on AmazonPros
- +Cheapest diskless 2-bay in this list
- +Supports high total capacity for future backup growth
- +Simple setup focused on Time Machine
- +Good starting point for a single-Mac household
Cons
- −Entry-level CPU limits running multiple simultaneous services
- −Diskless, needs drives purchased separately
- −Time Machine SMB3 setup requires more manual configuration than Synology's wizard
QNAP TS-264-8G-US 2-Bay Desktop NAS
About this pick
The TS-264 ships with 8GB of RAM, more than any other 2-bay in this list, which matters when you're running separate Time Machine shared folders for multiple Macs at once, each with its own quota and sparse bundle growing independently. QNAP's QTS handles SMB3 Time Machine shares cleanly for each configured Mac.
At $489 it costs more than double most 2-bay picks here, which makes sense mainly if you have 2 or more Macs backing up simultaneously and want headroom so neither backup slows the other down. For a single Mac, a cheaper pick in this list does the same job for less.
Best for: Households with 2+ Macs backing up to Time Machine at the same time
Check price on AmazonPros
- +8GB RAM handles multiple simultaneous Time Machine backups smoothly
- +2.5GbE speeds up first-time full backups on a matching network
- +Full QNAP app ecosystem for future expansion
- +Each Mac gets its own independently managed shared folder
Cons
- −Most expensive 2-bay pick in this list
- −Overkill for a single Mac's backup needs
- −Diskless, drives add to total cost
QNAP TS-216G-US 2-Bay 2.5GbE Desktop NAS
About this pick
The TS-216G's 2.5GbE port meaningfully shortens the first full Time Machine backup, which can otherwise take 8-24 hours over standard gigabit for a 512GB Mac depending on your router. If you have or plan to add a 2.5GbE-capable router or switch, that first backup finishes noticeably faster here than on the gigabit-only picks in this list.
Without a matching 2.5GbE network, it performs like any standard gigabit 2-bay NAS, so the port only pays off if the rest of your network supports it. Either way, running that first backup over Ethernet rather than Wi-Fi is worth doing regardless of which NAS you choose.
Best for: Buyers with a 2.5GbE network who want the fastest possible first Time Machine backup
Check price on AmazonPros
- +2.5GbE meaningfully speeds up the first full Time Machine backup
- +QNAP's app store adds flexibility beyond pure backup
- +Reasonable price for a 2.5GbE-equipped 2-bay
- +Solid choice for a MacBook with a large first backup
Cons
- −2.5GbE benefit requires a matching router or switch, an extra cost
- −On a standard gigabit network, speed matches non-2.5GbE picks
- −Diskless, drives sold separately
Asustor Drivestor 2 Gen 2 AS1202T
About this pick
The Drivestor 2 Gen 2 pairs a quad-core 1.7GHz CPU with 2.5GbE networking at the same $199.99 price as the UGREEN DH2300, giving Mac buyers a faster network port for the first backup without paying more. ADM OS supports SMB3-based Time Machine shares for macOS clients out of the box.
Its 1GB of DDR4 RAM is on the lighter side, which is fine for Time Machine running on its own schedule but leaves little headroom for other always-on apps at the same time. As a first NAS focused on Time Machine specifically, it's a well-balanced budget option.
Best for: First-time NAS buyers who want 2.5GbE speed for Time Machine without paying more
Check price on AmazonPros
- +2.5GbE networking at entry-level pricing
- +Quad-core CPU handles Time Machine's sparse bundle writes smoothly
- +SMB3 support built in for macOS compatibility
- +Good value against similarly priced 2-bay options
Cons
- −1GB RAM limits running much beyond Time Machine and light file sharing
- −Smaller app ecosystem than Synology or QNAP
- −Diskless, drives sold separately
TERRAMASTER F2-425
About this pick
The F2-425's Intel x86 quad-core CPU and 4GB of RAM give it more headroom than the ARM-based budget picks here, so Time Machine can run in the background while the NAS also handles file sharing or a light media app without either job bogging down. It includes 2.5GbE networking and supports SMB3 Time Machine shares.
TERRAMASTER's TOS software covers standard Time Machine setup, though its app ecosystem and community documentation are smaller than Synology's or QNAP's. For buyers who want Intel-class CPU headroom without paying 4-bay prices, it's a solid middle-tier choice.
Best for: Buyers who want Intel-class CPU headroom for Time Machine plus other light services
Check price on AmazonPros
- +Intel x86 CPU and 4GB RAM outclass ARM-based budget rivals
- +2.5GbE networking included
- +Handles Time Machine plus light extra services comfortably
- +Competitive price for the hardware tier
Cons
- −Smaller software ecosystem than Synology or QNAP
- −Diskless, drives sold separately
- −Less brand-name community support for Time Machine troubleshooting
UGREEN NAS DXP4800 Plus
About this pick
The DXP4800 Plus is the only 4-bay in this list, built around an Intel Pentium Gold 8505 5-core CPU that comfortably runs Time Machine for several Macs at once, each with its own dedicated shared folder and quota, without one Mac's backup slowing another's. Four bays also allow RAID configurations with better usable-capacity ratios than any 2-bay here.
It is the most expensive pick in this list before drives are factored in, and 4 matching drives add meaningful cost on top of the enclosure. For a household running Time Machine on 3 or more Macs, the extra bays and CPU headroom are what justify the price.
Best for: Households running Time Machine on 3+ Macs who want RAID flexibility
Check price on AmazonPros
- +5-core Intel CPU handles multiple simultaneous Time Machine backups easily
- +4 bays allow RAID 5/6/10 for better redundancy than a 2-bay
- +Highest total capacity ceiling in this list
- +Room to add other services without impacting backup performance
Cons
- −Most expensive enclosure in this list
- −Needs 4 matching drives, a significant added cost
- −More setup complexity than a simple 2-bay for a single Mac
How We Evaluated These NAS for Mac and Time Machine Backup
Each pick was assessed across 5 criteria weighted for real-world use.
SMB3 and Bonjour readiness
Verified each platform configures Time Machine over SMB3 with Bonjour/mDNS advertising rather than legacy AFP, since AFP support is being removed from macOS.
Per-Mac quota and multi-Mac handling
Checked how easily each NAS sets a backup quota per Mac and whether multiple Macs can each get their own isolated Time Machine shared folder.
RAM headroom for sparse bundle growth
Weighed RAM against the ability to run Time Machine's growing sparse bundle alongside other always-on NAS services without slowdown.
Network speed for first backup duration
Compared standard gigabit against 2.5GbE ports, since network speed is the biggest factor in how long a first full Time Machine backup takes.
True total cost including drives
Factored diskless enclosure price against the real drive cost needed to make each pick fully operational for Time Machine, not just the sticker price.
How to Choose the Right NAS for Mac and Time Machine Backup
By Number of Macs You're Backing Up
The right NAS scales with how many Macs it needs to run Time Machine for simultaneously, since RAM and CPU determine how well concurrent backups coexist.
| Macs to back up | What matters most | Best pick |
|---|---|---|
| 1 Mac, light everyday use | Low cost, simple SMB3 setup | UGREEN DH2300 or Asustor Drivestor 2 Gen 2 |
| 1 Mac with a large internal SSD | CPU headroom for a fast-growing sparse bundle | UGREEN DXP2800 |
| 2-3 Macs in one household | Turnkey per-Mac quota setup | Synology DS223 |
| 3+ Macs or a small studio | RAID flexibility and multi-job RAM | UGREEN DXP4800 Plus, QNAP TS-264-8G |
First Backup Speed: Plan for the Initial Backup Window
The first full Time Machine backup is the slowest one you'll ever run, and network speed determines whether it's an afternoon or an overnight job.
| Setup | First backup speed | Best pick |
|---|---|---|
| Standard gigabit network, wired first backup | 8-24 hours for a 512GB Mac, faster over Ethernet | Any pick in this list |
| 2.5GbE router/switch already installed | Meaningfully faster first full backup | QNAP TS-216G-US, Asustor Drivestor 2 Gen 2, TERRAMASTER F2-425 |
| Multiple Macs backing up on day one | Higher RAM prevents one Mac's backup slowing another's | QNAP TS-264-8G, UGREEN DXP4800 Plus |
Always run the very first full backup over Ethernet, not Wi-Fi, regardless of which NAS you choose; incremental backups after that are fine wirelessly.
By Setup Complexity You Want
Want the most turnkey Time Machine setup
Synology's DSM includes a dedicated Time Machine shared folder wizard that configures SMB3, Bonjour advertising, and quotas together, the smoothest first-time setup in this list.
Comfortable with a bit more manual configuration
UGREEN, QNAP, Asustor, and TERRAMASTER all support SMB3 Time Machine shares, but expect to manually verify SMB3 is active and set the quota yourself in the sharing settings.
Managing several Macs long-term
Prioritize higher RAM (QNAP TS-264-8G) or more bays (UGREEN DXP4800 Plus) so adding a 4th or 5th Mac later doesn't require replacing the NAS.
Budget vs. Headroom for Time Machine
Time Machine itself is lightweight day-to-day, but the NAS still needs enough RAM and CPU if you plan to run anything else alongside it.
| Budget tier | Trade-off | Best pick |
|---|---|---|
| Under $250, 1 Mac | Lean RAM, focused on Time Machine only | UGREEN DH2300, Asustor Drivestor 2 Gen 2 |
| $250-$400, some multitasking headroom | Intel CPU or larger RAM buffer | TERRAMASTER F2-425, UGREEN DXP2800 |
| $450+, multiple Macs at once | 8GB+ RAM or 4-bay RAID flexibility | QNAP TS-264-8G, UGREEN DXP4800 Plus |
Frequently Asked Questions
Will my Time Machine backups stop working because AFP is being removed?
If your NAS is still configured to use AFP, yes, backups will silently stop once your Mac updates past macOS 27. Every NAS in this list supports SMB3 with Bonjour/mDNS advertising, which is the protocol combination Apple is standardizing on, but confirm SMB3 is actually enabled in your sharing settings rather than assuming it by default.
Why does my Time Machine backup keep growing and filling up the NAS?
Time Machine stores backups in a sparse bundle disk image that expands automatically over time, and without a manually set quota it will keep growing until it consumes all available NAS space. Set a quota in the NAS admin panel during initial setup, a common recommendation is roughly 1.5x your Mac's internal storage capacity.
Can multiple Macs back up to the same NAS with Time Machine?
Yes, but each Mac needs its own separate shared folder with its own quota. Using a single shared folder for more than one Mac's Time Machine backup will corrupt the backup history for both machines, so set up a dedicated folder per Mac even within the same household.
How long does the first Time Machine backup take over a NAS?
For a 512GB Mac, an initial full Time Machine backup over Wi-Fi can take 8-24 hours depending on your router, and considerably less over a wired Ethernet connection. Run the first backup wired if at all possible; incremental backups afterward are small enough to run comfortably over Wi-Fi.
How do I know my Time Machine backup will actually restore if I need it?
A backup can appear to complete successfully for months while quietly failing to produce a restorable image due to RAID errors or file corruption. Periodically, at least once a quarter, test an actual file or folder restore from the backup rather than relying on Time Machine's success indicator alone.
Do drive compatibility warnings mean I bought the wrong drive?
Not necessarily. Some 2024-and-newer Plus-tier NAS models show a compatibility warning in the admin panel for any drive that isn't the manufacturer's own branded line, even when a reputable third-party NAS drive like Seagate IronWolf or WD Red works fine. It's worth knowing before you buy so the warning doesn't seem like a hardware failure.
Bottom Line
best overall: Synology DS223 Home & Office Backup Hub - best time machine integration pick in this roundup.
See the full rankings above for all picks with pros, cons, and best-for summaries.
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