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A desktop drive. It will work in a NAS the manufacturer certified it for, but it isn't rated for the continuous multi-drive duty a NAS bay imposes.

Capacity0.128 TB
Form factor2.5"*
TypeSSD*
InterfaceSATA
Interface speedSATA 6Gb/s
SeriesM550
ClassDesktop
Sequential read550 MB/s
Sequential write350 MB/s
Endurance72 TBW
MTBF1500000 hours
Warranty3 years
Sector format512e
NAND typeMLC
DRAM cache512MB LPDDR2
ControllerMarvell 88SS9178
Endurance (drive writes/day)0.5 DWPD
Power-loss protectionYes
EncryptionTCG Opal
Random read (4K)90000 IOPS
Random write (4K)75000 IOPS
Power, active0.15 W
Operating temperature32 to 158 °F (0 to 70 °C)
Power, standby/sleep0.15 W
Weight1 oz (27 g)
ReleasedMar 2014

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

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Certified on 28 QNAP NAS models

Show all 28 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.