Site updated: 23.5.19

Did The Job

Fitted no problem and yes, it is a very quiet fan considering it's size. (11th February 2019 via Trustpilot)
PM961 128GB Polaris NVMe M.2 SSD, MZVLW128HEGR
22 in stock
(2 customer ratings)

Samsung PM961 Polaris NVMe M.2 Solid State Drives

The Samsung PM961 M.2 Solid State Drives offer lightning read and writes speeds at a very competitive price.


  1. Samsung Polaris Controller
  2. Incredibly fast M.2 SSD
  3. NVMe 1.1 Host Controller Interface
  4. Sequential read and write speeds of up to 3000 and 650 MB/s
  5. Random read and write 4KB of up to 360,000 and 150,000 IOPS

The PM961 NVMe boasts outstanding performance, supports PCIe 3.0 (x4) interface. For ultra-slim notebooks and workstations wanting to adopt the PCIe 3.0 interface, the PM961 can read and write sequentially at 3000 MB/s and 1150 MB/s respectively, which would provide approximately four times faster sequential reading performance compared to current SATA SSDs. With a PCIe 3.0 interface, the drive achieves substantially higher energy efficiency, requiring only about 450 MB/s per watt for sequential reading and 250 MB/s per watt for sequential writing, which translates into a more than 50 percent improvement in performance per watt over that of the XP941 SSD. In addition, the new SSD's random read and write speeds reach up to 360,000 and 280,000 IOPS (inputs / outputs per second) respectively.

SpecificationsPM961 M.2 128GB
Model NumberMZVLW128HEGR-00000
Usage ApplicationClient PCs (Ultra-thin PCs compatible)
Dimensions (LxWxH)80 x 22 x 3.7 (mm)
InterfacePCIe Gen3 32Gb/s x4
Form FactorM.2
Key ID TypeM (PCIe ×4 and SATA)
Bytes per Sector512 Bytes
Host Controller InterfaceNVMe 1.1
ControllerSamsung Polaris
Sequential Read2800 MB/s Max
Sequential Write600 MB/s Max
4KB Random Read140,000 IOPS Max
4KB Random Write40,000 IOPS Max
TRIM SupportYes (Requires OS Support)
WeightMax. 10g
ReliabilityMTBF 1.5 million hours
Power Saving ModesAPM and L1.2
Power ConsumptionActive 6.1W, Idle 450mW, L1.2 5mW
TemperatureOperating 0°C to 70°C Non-Operating -40°C to 85°C
Humidity5% to 95%, non-condensing
Vibration Non-Operating 10~2000Hz, 20G
ShockNon-Operating 1500G , duration 0.5msec, 3 axis
MTBF1.5 Million Hours
Warranty24 months

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