NAS Drive Compatibility

Western Digital Red Pro 10TB

NAS HDD

Part number WD103KFBX · Red Pro series · SATA 6Gb/s (SATA III). If your machine is listed below, this drive is officially supported — not a forum workaround.

Red ProNAS HARD DRIVE3.5" SATA HDDWESTERN DIGITAL

Part of the Western Digital Red Pro series →

Check WD103KFBX price on Amazon  partner link

109
Compatible NAS models
0 Syn · 94 QNAP · 0 Asus · 0 TM
By vendor
10 TB
Listed capacity
Western Digital
Manufacturer
NAS Pro tier
Product line (manufacturer rating)
7200
Spindle speed (RPM)
CMR
Recording
512 MB
Cache
300 TB
Rated workload / year

Specifications are the manufacturer's published ratings for this product series; verify the exact part number before purchase.

Strong pick as a cold copy

Rated CMR (conventional magnetic recording) — the right recording type for a large cold copy. CMR keeps a full-library backup pass fast even at 16–24 TB, which is the whole point of the offline slot in a 3-2-1 plan: rotate two drives monthly, keep one powered off, and the backup tooling (Veeam, Duplicati, Hyper Backup, HBS 3) does the scheduling. Full rule and vendor tool table: 3-2-1 for NAS.

Compatibility verdict

It appears on the official compatibility lists of 109 machines and series — 94 QNAP, 15 UGREEN. This is a NAS-class drive: built for 24/7 operation with vibration compensation for multi-bay enclosures — the right tier for most 1-8 bay home or small-office NAS units. Its series rating is on file as CMR (conventional) — what RAID rebuilds and full-library copies want.

Compatible NAS models

QNAP HS-264 See its full HCL → QNAP QAI-16700 See its full HCL → QNAP TL-D1600S See its full HCL → QNAP TL-D400S See its full HCL → QNAP TL-D800C See its full HCL → QNAP TL-D800S See its full HCL → QNAP TL-R1200C-RP See its full HCL → QNAP TL-R1200PES-RP See its full HCL → QNAP TL-R1200S-RP See its full HCL → QNAP TL-R1220Sep-RP See its full HCL → QNAP TL-R1600PES-RP See its full HCL → QNAP TL-R1620Sep-RP See its full HCL → QNAP TL-R2400PES-RP See its full HCL → QNAP TL-R400S See its full HCL → QNAP TR-002 See its full HCL → QNAP TR-004 See its full HCL → QNAP TR-004U See its full HCL → QNAP TS-1232PXU-RP See its full HCL → QNAP TS-1264U-RP See its full HCL → QNAP TS-1273AU-RP See its full HCL → QNAP TS-133 See its full HCL → QNAP TS-1655 See its full HCL → QNAP TS-1673AU-RP See its full HCL → QNAP TS-216G See its full HCL → QNAP TS-233 See its full HCL → QNAP TS-253E See its full HCL → QNAP TS-262 See its full HCL → QNAP TS-262A See its full HCL → QNAP TS-264 See its full HCL → QNAP TS-364 See its full HCL → QNAP TS-431X3 See its full HCL → QNAP TS-431XeU See its full HCL → QNAP TS-432PXU See its full HCL → QNAP TS-432PXU-RP See its full HCL → QNAP TS-432X See its full HCL → QNAP TS-432XU See its full HCL → QNAP TS-432XU-RP See its full HCL → QNAP TS-433 See its full HCL → QNAP TS-435XeU See its full HCL → QNAP TS-453E See its full HCL → QNAP TS-462 See its full HCL → QNAP TS-462A See its full HCL → QNAP TS-464 See its full HCL → QNAP TS-464U See its full HCL → QNAP TS-464U-RP See its full HCL → QNAP TS-464eU See its full HCL → QNAP TS-473A See its full HCL → QNAP TS-632X See its full HCL → QNAP TS-664 See its full HCL → QNAP TS-673A See its full HCL → QNAP TS-832PX See its full HCL → QNAP TS-832PXU See its full HCL → QNAP TS-832PXU-RP See its full HCL → QNAP TS-855X See its full HCL → QNAP TS-855eU See its full HCL → QNAP TS-855eU-RP See its full HCL → QNAP TS-864eU See its full HCL → QNAP TS-864eU-RP See its full HCL → QNAP TS-873A See its full HCL → QNAP TS-873AU See its full HCL → QNAP TS-873AU-RP See its full HCL → QNAP TS-873AeU See its full HCL → QNAP TS-873AeU-RP See its full HCL → QNAP TS-877XU-RP See its full HCL → QNAP TS-932PX See its full HCL → QNAP TS-AI642 See its full HCL → QNAP TS-h1065eU See its full HCL → QNAP TS-h1065eU-RP See its full HCL → QNAP TS-h1277AXU-RP See its full HCL → QNAP TS-h1277XU-RP See its full HCL → QNAP TS-h1677AXU-RP See its full HCL → QNAP TS-h1677XU-RP See its full HCL → QNAP TS-h1886XU-RP R2 See its full HCL → QNAP TS-h1887XU-RP See its full HCL → QNAP TS-h2287XU-RP See its full HCL → QNAP TS-h2477AXU-RP See its full HCL → QNAP TS-h2477XU-RP See its full HCL → QNAP TS-h3087XU-RP See its full HCL → QNAP TS-h886 See its full HCL → QNAP TS-h966TX See its full HCL → QNAP TS-h973AX See its full HCL → QNAP TS-h987XU-RP See its full HCL → QNAP TVS-472XT See its full HCL → QNAP TVS-672XT See its full HCL → QNAP TVS-872XT See its full HCL → QNAP TVS-h1288X See its full HCL → QNAP TVS-h1677AX See its full HCL → QNAP TVS-h1688X See its full HCL → QNAP TVS-h474 See its full HCL → QNAP TVS-h674 See its full HCL → QNAP TVS-h674T See its full HCL → QNAP TVS-h874 See its full HCL → QNAP TVS-h874T See its full HCL → QNAP TVS-h874X See its full HCL → UGREEN dh2300 See its full HCL → UGREEN dh4300-plus See its full HCL → UGREEN dxp2800 See its full HCL → UGREEN dxp2800-gt See its full HCL → UGREEN dxp4800 See its full HCL → UGREEN dxp4800-gt See its full HCL → UGREEN dxp4800-plus See its full HCL → UGREEN dxp4800-pro See its full HCL → UGREEN dxp6800-plus See its full HCL → UGREEN dxp6800-pro See its full HCL → UGREEN dxp6800-ultra See its full HCL → UGREEN dxp8800-plus See its full HCL → UGREEN dxp8800-ultra See its full HCL → UGREEN idx6011 See its full HCL → UGREEN idx6011-pro See its full HCL →

Same-capacity alternatives

Other drives listed at 10 TB capacity, ranked by how many machines list them:

Seagate ST10000NM0086 367 machines · Exos X10 Toshiba MN06ACA10T 343 machines · MN06ACA*** Toshiba HDWG11AXZSTA 326 machines · N300 Seagate ST10000NE0004 325 machines · IronWolf Pro Toshiba HDWG11AUZSVA 307 machines · N300 Seagate ST10000VE0008 300 machines · SkyHawkAI Seagate ST10000NM0016 298 machines · Exos X10 Seagate ST10000NE0008 297 machines · IronWolf Pro

Quick answers

Is the WD103KFBX officially compatible with my NAS?

It appears on the official compatibility lists of 109 machines and series — 94 QNAP, 15 UGREEN. Every machine page linked below shows the vendor's own list entry, refreshed daily.

Is the WD103KFBX CMR or SMR?

As a Western Digital Red Pro drive, it is rated CMR. CMR (conventional magnetic recording) is what a RAID array wants: SMR drives slow rebuilds dramatically. See the <a href="/faq/cmr-vs-smr-nas-drives/">CMR vs SMR guide</a> for the full series table.

Is the WD103KFBX a good NAS drive?

This is a NAS-class drive: built for 24/7 operation with vibration compensation for multi-bay enclosures — the right tier for most 1-8 bay home or small-office NAS units. Its series rating is on file as CMR (conventional) — what RAID rebuilds and full-library copies want.

Can I use the WD103KFBX for a 3-2-1 cold backup copy?

Rated CMR (conventional magnetic recording) — the right recording type for a large cold copy. CMR keeps a full-library backup pass fast even at 16–24 TB, which is the whole point of the offline slot in a 3-2-1 plan: rotate two drives monthly, keep one powered off, and the backup tooling (Veeam, Duplicati, Hyper Backup, HBS 3) does the scheduling. Full rule and vendor tool table: 3-2-1 for NAS.

What are alternatives to the WD103KFBX?

At the same capacity, the most widely listed alternatives are Seagate ST10000NM0086 (367 machines), Toshiba MN06ACA10T (343 machines), Toshiba HDWG11AXZSTA (326 machines). The full ranked list is below.