Western Digital Ultrastar DC HC555 20TB

Enterprise HDD

Part number 0B48724 (WUH722020CLE6L4) · Ultrastar DC HC555 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 HC555 series →

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102

Compatible NAS models

0 Syn · 102 QNAP · 0 Asus · 0 TM

By vendor

20 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 102 machines and series — 102 QNAP. 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 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-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-R1210TC4-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 TL-R6020Sep-RP 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-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-432XeU 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-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-h1465U-RP See its full HCL → QNAP TS-h1655XeU-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-h665 See its full HCL → QNAP TS-h665U See its full HCL → QNAP TS-h665U-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-672X See its full HCL → QNAP TVS-672XT See its full HCL → QNAP TVS-872XT See its full HCL → QNAP TVS-AIh1688ATX See its full HCL → QNAP TVS-h1277AX 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 → QNAP TVS-h877AX See its full HCL →

Same-capacity alternatives

Other drives listed at 20 TB capacity, ranked by how many machines list them:

Toshiba MG10ACA20TE 144 machines · MG10 Toshiba MG11ACA20TE 135 machines · MG11 Series Toshiba MG10ACA20TA 133 machines · MG10 Seagate ST20000NM007D 130 machines · EXOS x20 Seagate ST20000NT001 119 machines · IronWolf Pro Toshiba HDWG62AUZSVA 111 machines · N300 Seagate ST20000NM002H 111 machines · EXOS X24 Western Digital WUH722020ALE6L4 111 machines · Ultrastar DC HC560

Quick answers

Is the 0B48724 (WUH722020CLE6L4) officially compatible with my NAS?

It appears on the official compatibility lists of 102 machines and series — 102 QNAP. Every machine page linked below shows the vendor's own list entry, refreshed daily.

Is the 0B48724 (WUH722020CLE6L4) 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 0B48724 (WUH722020CLE6L4) 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 0B48724 (WUH722020CLE6L4)?

At the same capacity, the most widely listed alternatives are Toshiba MG10ACA20TE (144 machines), Toshiba MG11ACA20TE (135 machines), Toshiba MG10ACA20TA (133 machines). The full ranked list is below.