Western Digital Ultrastar DC HC520 12TB

Enterprise HDD

Part number HUH721212ALE600 · Ultrastar DC HC520 series · SATA 6Gb/s (SATA III). If your machine is listed below, this drive is officially supported — not a forum workaround.

Part of the Western Digital Ultrastar DC HC520 series →

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287

Compatible NAS models

0 Syn · 279 QNAP · 8 Asus · 0 TM

By vendor

12 TB

Listed capacity

Western Digital

Manufacturer

3-2-1 cold backup fit

No series-level recording rating is on file for this part number yet — check the exact model for CMR vs SMR before buying it as a large cold copy (SMR is the one trait that makes a 16 TB+ backup copy painfully slow). The 3-2-1 guide and the backup tools encyclopedia cover what to schedule it with.

Compatibility verdict

It appears on the official compatibility lists of 287 machines and series — 279 QNAP, 8 Asustor. This is a Enterprise-class drive: rated for heavier sustained workloads than desktop drives. It is a strong pick for a NAS running 24/7, large-array rebuilds or camera workloads, and enterprise lines are also the drives most widely listed across all five vendors' HCLs. No series-level recording rating is on file for this part number yet, so check CMR vs SMR on the exact model before buying for an array.

Compatible NAS models

QNAP REXP-1210U-RP See its full HCL → QNAP REXP-1220U-RP See its full HCL → QNAP REXP-1610U-RP See its full HCL → QNAP REXP-1620U-RP See its full HCL → QNAP TDS-16489U See its full HCL → QNAP TDS-16489U R2 QES See its full HCL → QNAP TDS-16489U R2 QTS See its full HCL → QNAP TES-1885U QES See its full HCL → QNAP TES-1885U QTS 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-D810TC4 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-R400S See its full HCL → QNAP TR-002 See its full HCL → QNAP TS-1079 Pro See its full HCL → QNAP TS-1231XU See its full HCL → QNAP TS-1231XU-RP See its full HCL → QNAP TS-1232PXU-RP See its full HCL → QNAP TS-1232XU See its full HCL → QNAP TS-1232XU-RP See its full HCL → QNAP TS-1253BU See its full HCL → QNAP TS-1253BU-RP See its full HCL → QNAP TS-1253DU-RP See its full HCL → QNAP TS-1253U See its full HCL → QNAP TS-1253U-RP See its full HCL → QNAP TS-1263U See its full HCL → QNAP TS-1263U-RP See its full HCL → QNAP TS-1263XU See its full HCL → QNAP TS-1263XU-RP See its full HCL → QNAP TS-1264U-RP See its full HCL → QNAP TS-1270U-RP See its full HCL → QNAP TS-1273AU-RP See its full HCL → QNAP TS-1273U-RP See its full HCL → QNAP TS-1277 See its full HCL → QNAP TS-1277XU-RP See its full HCL → QNAP TS-1279U-RP See its full HCL → QNAP TS-1283XU-RP See its full HCL → QNAP TS-133 See its full HCL → QNAP TS-1635 See its full HCL → QNAP TS-1635AX See its full HCL → QNAP TS-1655 See its full HCL → QNAP TS-1673AU-RP See its full HCL → QNAP TS-1673U-RP See its full HCL → QNAP TS-1677X See its full HCL → QNAP TS-1677XU-RP See its full HCL → QNAP TS-1679U-RP See its full HCL → QNAP TS-1683XU-RP See its full HCL → QNAP TS-1685 See its full HCL → QNAP TS-1886XU-RP See its full HCL → QNAP TS-216G See its full HCL → QNAP TS-230 See its full HCL → QNAP TS-233 See its full HCL → QNAP TS-2477XU-RP See its full HCL → QNAP TS-2483XU-RP See its full HCL → QNAP TS-251+ See its full HCL → QNAP TS-251B See its full HCL → QNAP TS-251D See its full HCL → QNAP TS-253A See its full HCL → QNAP TS-253B See its full HCL → QNAP TS-253Be See its full HCL → QNAP TS-253D See its full HCL → QNAP TS-253E See its full HCL → QNAP TS-262 See its full HCL → QNAP TS-264 See its full HCL → QNAP TS-2888X See its full HCL → QNAP TS-332X See its full HCL → QNAP TS-431KX See its full HCL → QNAP TS-431U See its full HCL → QNAP TS-431X See its full HCL → QNAP TS-431X2 See its full HCL → QNAP TS-431X3 See its full HCL → QNAP TS-431XU See its full HCL → QNAP TS-431XU-RP 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-433eU See its full HCL → QNAP TS-451+ See its full HCL → QNAP TS-451D2 See its full HCL → QNAP TS-451DeU See its full HCL → QNAP TS-451U See its full HCL → QNAP TS-453A See its full HCL → QNAP TS-453B See its full HCL → QNAP TS-453BT3 See its full HCL → QNAP TS-453BU See its full HCL → QNAP TS-453BU-RP See its full HCL → QNAP TS-453Be See its full HCL → QNAP TS-453Bmini See its full HCL → QNAP TS-453D See its full HCL → QNAP TS-453DU See its full HCL → QNAP TS-453DU-RP See its full HCL → QNAP TS-453E See its full HCL → QNAP TS-453U See its full HCL → QNAP TS-453U-RP See its full HCL → QNAP TS-453 Pro See its full HCL → QNAP TS-453mini See its full HCL → QNAP TS-462 See its full HCL → QNAP TS-463U See its full HCL → QNAP TS-463U-RP See its full HCL → QNAP TS-463XU See its full HCL → QNAP TS-463XU-RP 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-470 See its full HCL → QNAP TS-470 Pro See its full HCL → QNAP TS-473 See its full HCL → QNAP TS-473A See its full HCL → QNAP TS-531P See its full HCL → QNAP TS-531X See its full HCL → QNAP TS-563 See its full HCL → QNAP TS-632X See its full HCL → QNAP TS-651 See its full HCL → QNAP TS-653A See its full HCL → QNAP TS-653B See its full HCL → QNAP TS-653D See its full HCL → QNAP TS-653 Pro See its full HCL → QNAP TS-664 See its full HCL → QNAP TS-670 See its full HCL → QNAP TS-670 Pro See its full HCL → QNAP TS-673 See its full HCL → QNAP TS-673A See its full HCL → QNAP TS-677 See its full HCL → QNAP TS-831X See its full HCL → QNAP TS-831XU See its full HCL → QNAP TS-831XU-RP 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-832X See its full HCL → QNAP TS-832XU See its full HCL → QNAP TS-832XU-RP See its full HCL → QNAP TS-851 See its full HCL → QNAP TS-853A See its full HCL → QNAP TS-853BU See its full HCL → QNAP TS-853BU-RP See its full HCL → QNAP TS-853DU-RP See its full HCL → QNAP TS-853U See its full HCL → QNAP TS-853U-RP See its full HCL → QNAP TS-853 Pro See its full HCL → QNAP TS-855eU See its full HCL → QNAP TS-855eU-RP See its full HCL → QNAP TS-863U See its full HCL → QNAP TS-863U-RP See its full HCL → QNAP TS-863XU See its full HCL → QNAP TS-863XU-RP See its full HCL → QNAP TS-864eU See its full HCL → QNAP TS-864eU-RP See its full HCL → QNAP TS-870 See its full HCL → QNAP TS-870U-RP See its full HCL → QNAP TS-870 Pro See its full HCL → QNAP TS-873 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-873U-RP See its full HCL → QNAP TS-877 See its full HCL → QNAP TS-877XU See its full HCL → QNAP TS-877XU-RP See its full HCL → QNAP TS-879U-RP See its full HCL → QNAP TS-879 Pro See its full HCL → QNAP TS-883XU See its full HCL → QNAP TS-883XU-RP See its full HCL → QNAP TS-932PX See its full HCL → QNAP TS-932X See its full HCL → QNAP TS-963X See its full HCL → QNAP TS-977XU See its full HCL → QNAP TS-977XU-RP See its full HCL → QNAP TS-983XU See its full HCL → QNAP TS-983XU-RP See its full HCL → QNAP TS-EC1080 Pro See its full HCL → QNAP TS-EC1279U-RP See its full HCL → QNAP TS-EC1279U-SAS-RP See its full HCL → QNAP TS-EC1280U See its full HCL → QNAP TS-EC1280U R2 See its full HCL → QNAP TS-EC1679U-RP See its full HCL → QNAP TS-EC1679U-SAS-RP See its full HCL → QNAP TS-EC1680U See its full HCL → QNAP TS-EC1680U R2 See its full HCL → QNAP TS-EC2480U See its full HCL → QNAP TS-EC2480U R2 See its full HCL → QNAP TS-EC879U-RP See its full HCL → QNAP TS-EC880U See its full HCL → QNAP TS-EC880U R2 See its full HCL → QNAP TS-EC880 Pro See its full HCL → QNAP TS-h1277AXU-RP See its full HCL → QNAP TS-h1277XU-RP See its full HCL → QNAP TS-h1283XU-RP See its full HCL → QNAP TS-h1677AXU-RP See its full HCL → QNAP TS-h1677XU-RP See its full HCL → QNAP TS-h1683XU-RP See its full HCL → QNAP TS-h1886XU-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-h2477XU-RP See its full HCL → QNAP TS-h2483XU-RP See its full HCL → QNAP TS-h3087XU-RP See its full HCL → QNAP TS-h686 See its full HCL → QNAP TS-h765eU See its full HCL → QNAP TS-h886 See its full HCL → QNAP TS-h973AX See its full HCL → QNAP TS-h977XU-RP See its full HCL → QNAP TS-h987XU-RP See its full HCL → QNAP TVS-1271U-RP See its full HCL → QNAP TVS-1272XU-RP See its full HCL → QNAP TVS-1282 See its full HCL → QNAP TVS-1282T See its full HCL → QNAP TVS-1282T3 See its full HCL → QNAP TVS-1582TU See its full HCL → QNAP TVS-1672XU-RP See its full HCL → QNAP TVS-2472XU-RP See its full HCL → QNAP TVS-463 See its full HCL → QNAP TVS-471 See its full HCL → QNAP TVS-471U See its full HCL → QNAP TVS-471U-RP See its full HCL → QNAP TVS-472XT See its full HCL → QNAP TVS-473 See its full HCL → QNAP TVS-473e See its full HCL → QNAP TVS-663 See its full HCL → QNAP TVS-671 See its full HCL → QNAP TVS-672N See its full HCL → QNAP TVS-672X See its full HCL → QNAP TVS-672XT See its full HCL → QNAP TVS-673 See its full HCL → QNAP TVS-673e See its full HCL → QNAP TVS-682 See its full HCL → QNAP TVS-682T See its full HCL → QNAP TVS-863 See its full HCL → QNAP TVS-863+ See its full HCL → QNAP TVS-871 See its full HCL → QNAP TVS-871T See its full HCL → QNAP TVS-871U-RP See its full HCL → QNAP TVS-872N See its full HCL → QNAP TVS-872X See its full HCL → QNAP TVS-872XT See its full HCL → QNAP TVS-872XU See its full HCL → QNAP TVS-872XU-RP See its full HCL → QNAP TVS-873 See its full HCL → QNAP TVS-873e See its full HCL → QNAP TVS-882 See its full HCL → QNAP TVS-882BR See its full HCL → QNAP TVS-882BRT3 See its full HCL → QNAP TVS-882T See its full HCL → QNAP TVS-951X See its full HCL → QNAP TVS-972XU See its full HCL → QNAP TVS-972XU-RP See its full HCL → QNAP TVS-EC1080 See its full HCL → QNAP TVS-EC1080+ See its full HCL → QNAP TVS-EC1280U-SAS-RP See its full HCL → QNAP TVS-EC1280U-SAS-RP R2 See its full HCL → QNAP TVS-EC1580MU-SAS-RP See its full HCL → QNAP TVS-EC1580MU-SAS-RP R2 See its full HCL → QNAP TVS-EC1680U-SAS-RP See its full HCL → QNAP TVS-EC1680U-SAS-RP R2 See its full HCL → QNAP TVS-EC2480U-SAS-RP See its full HCL → QNAP TVS-EC2480U-SAS-RP R2 See its full HCL → QNAP TVS-EC880 See its full HCL → QNAP TVS-h1288X See its full HCL → QNAP TVS-h1688X See its full HCL → QNAP TVS-h474 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 → Asustor AS 10 See its full HCL → Asustor AS 31/32 See its full HCL → Asustor AS 50/51 See its full HCL → Asustor AS 61/62 See its full HCL → Asustor AS 63/64 See its full HCL → Asustor AS 70 See its full HCL → Asustor AS6004U See its full HCL → Asustor AX7012R See its full HCL →

Same-capacity alternatives

Other drives listed at 12 TB capacity, ranked by how many machines list them:

Western Digital WD121KRYZ 381 machines · Gold Toshiba MG07ACA12TE 329 machines · MG07ACA*** Seagate ST12000NM0008 315 machines · Exos X14 Seagate ST12000NE0007 311 machines · IronWolf Pro Seagate ST12000NE0008 296 machines · IronWolf Pro Seagate ST12000VE0008 287 machines · SkyHawkAI Western Digital HUH721212ALE604 285 machines · Ultrastar DC HC520 Seagate ST12000VN0008 280 machines · IronWolf

Quick answers

Is the HUH721212ALE600 officially compatible with my NAS?

It appears on the official compatibility lists of 287 machines and series — 279 QNAP, 8 Asustor. Every machine page linked below shows the vendor's own list entry, refreshed daily.

Is the HUH721212ALE600 a good NAS drive?

This is a Enterprise-class drive: rated for heavier sustained workloads than desktop drives. It is a strong pick for a NAS running 24/7, large-array rebuilds or camera workloads, and enterprise lines are also the drives most widely listed across all five vendors' HCLs. No series-level recording rating is on file for this part number yet, so check CMR vs SMR on the exact model before buying for an array.

Can I use the HUH721212ALE600 for a 3-2-1 cold backup copy?

No series-level recording rating is on file for this part number yet — check the exact model for CMR vs SMR before buying it as a large cold copy (SMR is the one trait that makes a 16 TB+ backup copy painfully slow). The 3-2-1 guide and the backup tools encyclopedia cover what to schedule it with.

What are alternatives to the HUH721212ALE600?

At the same capacity, the most widely listed alternatives are Western Digital WD121KRYZ (381 machines), Toshiba MG07ACA12TE (329 machines), Seagate ST12000NM0008 (315 machines). The full ranked list is below.