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A datacenter-class drive: higher workload rating and longer warranty than a consumer model, usually at a higher price per terabyte.

Capacity1.6 TB
Form factor2.5"*
TypeSSD*
Interface speedPCIe Gen3 x4
SeriesUltrastar DC SN640
ClassEnterprise
Sequential read3100 MB/s
Sequential write2170 MB/s
Endurance5980.16 TBW
MTBF2000000 hours
Warranty5 years
Sector format512e/4Kn
NAND type3D TLC
Endurance (drive writes/day)2 DWPD
Power-loss protectionYes
Random read (4K)473000 IOPS
Random write (4K)116000 IOPS
Operating temperature32 to 158 °F (0 to 70 °C)
Height (z-height)0.28 in (7 mm)
Weight3.4 oz (95 g)
Released2019

* Decoded from the drive model number, not stated by the NAS manufacturer.

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Certified on 9 QNAP NAS models

Show all 9 QNAP models

The certified list above comes from QNAP's published Hardware Compatibility List. Certification is the manufacturer's statement, not a test performed here.