Samsung® PM961 Polaris 128GB M.2-2280 PCI-e 3.0 x 4 NVMe Single-Sided Solid State Drive

Capacity *
Current stock: 0


World Class Performance in a Tiny Form Factor

Samsung continues to raise the bar with their next generation of PCIe technology.  This is a genuine Eluktronics part which will allow you to install and keep the drive installed internally in the unfortunate event hardware support is needed.  Eluktronics titles this part the "Eluktro Pro-X" which is the highest tier of performance in our product line-up.  This M.2 SSD is also designed for use in the latest notebook & desktop PCs with a PCIe 80mm interface and supports generation 3.0 x4.  This M.2 form factor (80mm x 22mm), is roughly one seventh the size of a 2.5-inch SSD.  The drive's compactness is well suited for most notebook PC designs, freeing up space for other components including the battery.  At the same time, the performance level is approximately five times faster than that of the latest SSD with a SATA interface!







Sequential Read

Up to 2,800 MB/s

Up to 2,800 MB/s



Sequential Write

Up to 600 MB/s

Up to 1,100 MB/s


4K Random Read

Up to 140K IOPS

Up to 250K IOPS


4K Random Write

Up to 40K IOPS

Up to 180K IOPS



Samsung® Polaris

Flash Type

Samsung® TLC V-NAND

Form Factor

M Key M.2 2280


PCIe Gen3 8Gb/s Interface, up to 4 Lanes (PCIe 3.0 x4)



Key Features:

• Extreme Performance - up to 2,800MB sequential read speeds and up to 1,100 MB/s sequential write speeds!
• PCIe 3.0 device
• Small M.2 form factor plugs straight into your PCIe-based M.2 socket with no additional cables required


Any Eluktronics laptop purchased in 2016 and later support this latest technology.  These drives are also compatible with PCIe M.2 SSD in a wide variety of systems, so long as support is built into the system UEFI BIOS code. Please contact your PC manufacturer or Eluktronics if you have any compatibility questions. Below is a general compatibility guide:

• Z97-based and newer motherboards. Note, some boards have just 2x PCIe lanes on the M.2 socket. Check your system documentation as 4x PCIe lanes are required for maximum performance.
• X99-based and newer motherboards. Note, some boards require a 40-lane CPU to feed 4x PCIe lanes to the M.2 socket. Check your system documentation.
• Notebook and desktop PC's with PCIe M.2 2280 ports (must support NVMe).  BIOS update may be required from the manufacturer of your PC to be recognized.
• i7 model Intel NUC
NOTE - NOT compatible in MacBook, MacBook Pro, iMac, Mac Mini, or the current 'cylindrical' model Mac Pro.


2 Year USA Based Eluktronics Warranty

What's Included:

  • Bare SSD Drive in plain packaging

*Eluktronics holds NO affiliation to Samsung® or it's subsidiaries.  This part derives from the Samsung® PM961 series which is intended for OEM's only.  OEM devices do not hold a traditional warranty and the seller is strictly responsible for supporting the product if an issue occurs.  Eluktronics warrants this part for 2 years from the date of receipt.*


Reviews (2)

Phil May 17th 2018

Fast With Good Throughput

Purchased this for a family member. Previously I had purchased another nvme 128GB ssd for the same price (Adata) for use in my laptop. This is far, far better than the Adata stick. I'm actually flat out kicking myself. Not entirely sure how they can sell these at this price, pretty solid bargain.

Curt Mar 9th 2017

Upgraded SSD

I purchased the 1TB drive to replace my 512GB primary. I now have a 1TB primary and a 512GB Data all in PCIe. Eluktronics Support said to put the pink heat pad as close to the connector as possible to dissipate the heat. I used Paragon Hard Disk Manager 15 Professional to clone. Everything transferred well and I'm loving it.

Additional Info

Additional Info

2 Year Eluktronics USA Based Warranty
Eluktro Pro-X G1 - PM961
Usually ships in 24 hours
Capacity Options:
128GB to 1TB
Read Speeds:
Up to 3,000MB/sec
Write Speeds:
Up to 1,700MB/sec
Samsung Polaris
Form Factor:
M.2 80mm PCIe