Samsung Consumer 640GB

Other HDD

Part number HD642JJ · Consumer series · SATA 3Gb/s (SATA II). If your machine is listed below, this drive is officially supported — not a forum workaround.

ConsumerNAS HARD DRIVE3.5" SATA HDDSAMSUNG

Part of the Samsung Consumer series →

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72
Compatible NAS models
0 Syn · 72 QNAP · 0 Asus · 0 TM
By vendor
640 GB
Listed capacity
Samsung
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 72 machines and series — 72 QNAP. Check the class badge above: drives tagged NAS or Enterprise are built for 24/7 multi-bay operation. Desktop-class drives often lack vibration resistance and are usually absent from vendor 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 TS-110 See its full HCL → QNAP TS-112 See its full HCL → QNAP TS-112P See its full HCL → QNAP TS-119 See its full HCL → QNAP TS-119P+ See its full HCL → QNAP TS-119P II See its full HCL → QNAP TS-120 See its full HCL → QNAP TS-121 See its full HCL → QNAP TS-1269U-RP See its full HCL → QNAP TS-210 See its full HCL → QNAP TS-212 See its full HCL → QNAP TS-212-E See its full HCL → QNAP TS-212P See its full HCL → QNAP TS-219 See its full HCL → QNAP TS-219P See its full HCL → QNAP TS-219P+ See its full HCL → QNAP TS-219P II See its full HCL → QNAP TS-220 See its full HCL → QNAP TS-221 See its full HCL → QNAP TS-239 Pro See its full HCL → QNAP TS-239 Pro II See its full HCL → QNAP TS-239 Pro II+ See its full HCL → QNAP TS-259 Pro See its full HCL → QNAP TS-259 Pro+ See its full HCL → QNAP TS-269L See its full HCL → QNAP TS-269 Pro See its full HCL → QNAP TS-410 See its full HCL → QNAP TS-410U See its full HCL → QNAP TS-412 See its full HCL → QNAP TS-412U See its full HCL → QNAP TS-419P See its full HCL → QNAP TS-419P+ See its full HCL → QNAP TS-419P II See its full HCL → QNAP TS-419U See its full HCL → QNAP TS-419U+ See its full HCL → QNAP TS-419U II See its full HCL → QNAP TS-420 See its full HCL → QNAP TS-420U See its full HCL → QNAP TS-421 See its full HCL → QNAP TS-421U See its full HCL → QNAP TS-439 Pro See its full HCL → QNAP TS-439 Pro II See its full HCL → QNAP TS-439 Pro II+ See its full HCL → QNAP TS-459U-RP+ SP+ See its full HCL → QNAP TS-459 Pro See its full HCL → QNAP TS-459 Pro+ See its full HCL → QNAP TS-459 Pro II See its full HCL → QNAP TS-469L See its full HCL → QNAP TS-469U-RP See its full HCL → QNAP TS-469U-SP See its full HCL → QNAP TS-469 Pro See its full HCL → QNAP TS-509 Pro See its full HCL → QNAP TS-559 Pro See its full HCL → QNAP TS-559 Pro+ See its full HCL → QNAP TS-559 Pro II See its full HCL → QNAP TS-569L See its full HCL → QNAP TS-569 Pro See its full HCL → QNAP TS-639 Pro See its full HCL → QNAP TS-659 Pro See its full HCL → QNAP TS-659 Pro+ See its full HCL → QNAP TS-659 Pro II See its full HCL → QNAP TS-669L See its full HCL → QNAP TS-669 Pro See its full HCL → QNAP TS-809U-RP See its full HCL → QNAP TS-809 Pro See its full HCL → QNAP TS-859U-RP See its full HCL → QNAP TS-859U-RP+ See its full HCL → QNAP TS-859 Pro See its full HCL → QNAP TS-859 Pro+ See its full HCL → QNAP TS-869L See its full HCL → QNAP TS-869U-RP See its full HCL → QNAP TS-869 Pro See its full HCL →

Same-capacity alternatives

Other drives listed at 640 GB capacity, ranked by how many machines list them:

Western Digital WD6400AAKS 146 machines · Western Digital WD6401AALS 72 machines · Consumer Western Digital WD6402AAEX 72 machines · Consumer Seagate ST3640323AS 72 machines · Consumer BarraCuda Toshiba MK6459GSXP 53 machines · Western Digital WD6400AACS 48 machines · Consumer Hitachi HDT721064SLA360 32 machines · Consumer

Quick answers

Is the HD642JJ officially compatible with my NAS?

It appears on the official compatibility lists of 72 machines and series — 72 QNAP. Every machine page linked below shows the vendor's own list entry, refreshed daily.

Is the HD642JJ a good NAS drive?

Check the class badge above: drives tagged NAS or Enterprise are built for 24/7 multi-bay operation. Desktop-class drives often lack vibration resistance and are usually absent from vendor 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 HD642JJ 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 HD642JJ?

At the same capacity, the most widely listed alternatives are Western Digital WD6400AAKS (146 machines), Western Digital WD6401AALS (72 machines), Western Digital WD6402AAEX (72 machines). The full ranked list is below.