|Hard Drive||512 GB|
SAMSUNG SM951 MZHPV256HDGL M.2 256GB Internal Solid State Drive (SSD)
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- M.2 Interface: PCIe 3.0 x4 lanes, up to 32Gb/s
- Sequential Read: 2150MB/s, Sequential Write: 1500 MB/s, Random Read (QD=4): 90K IOPS, Random Write (QD=4): 70K IOPS
- 512MB LPDDR2 DRAM Buffer Memory
- Works with most motherboards and notebooks with a compatible M.2 PCIe interface slot. Includes Z97 and X99 motherboards and pre-cylindrical Mac Pro. IMPORTANT NOTE: “NOT Compatible” with the MacBook, MacBook Air or MacBook Pro
- Supports Standard AHCI driver, APM and L1.2 Power Saving Mode, End-to-End Data Protection, Supports TRIM Command, RoHS Compliant, Halogen-Free Compliant
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|Shipping||—||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Sold By||—||Amazon.com||Amazon.com||Amazon.com||XOTIC PC||Sonnet Technologies|
|Data Transfer Rate||3,938 MB per second||3,938 MB per second||3,938 MB per second||750 MB per second||3,938 MB per second||660 Mb per second|
|Device Type||—||Internal Solid State Drive||Internal Solid State Drive||Solid State Drives||—||Components Other|
|Digital Storage Capacity||256 GB||250 GB||512 GB||500 GB||128 GB||6 GB|
|Flash Memory Installed Size||512||250||512||500||128||—|
|Hard-Drive Size||512 GB||250 GB||512 GB||500 GB||128 GB||—|
|Hard Disk Form Factor||—||2 in||2 in||3.5 in||—||2.5 in|
|Hardware Connectivity||—||PCIE x 4||PCIE x 4||SATA 6.0 Gb/s||—||FireWire eSATA|
|Hardware Platform||laptop, mac||PC||PC||PC; Linux||—||PC;Mac|
|Item Dimensions||0.87 x 3.15 x 0.15 in||3.15 x 0.87 x 0.9 in||0.87 x 3.15 x 0.09 in||0.06 x 3.16 x 0.87 in||3.15 x 0.87 x 0.16 in||5.25 x 8.6 x 1.6 in|
|Item Weight||0.35 ounces||0.32 ounces||1.89 ounces||0.25 ounces||0.35 ounces||0.57 lb|
|Memory Storage Capacity||256 GB||250 GB||512 GB||500 GB||256 GB||—|
|Optical Storage Read Speed||2150 Mbps||—||—||540MB/s||—||—|
|Writing speed of the optical memory||—||—||—||500MB/s||—||—|
|Size||M.2 80mm||250GB||512 GB||500 GB||128 GB||—|
The Samsung SM951 M.2 PCIe SSD (AHCI model) is the new performance leader in M.2 form factor SSD's, providing up to 2150MB/s read and 1500MB/s write sequential data transfer rates. COMPATIBILITY NOTES: The Samsung SM951 PCIe M.2 SSD is generally compatible in a wide variety of systems, so long as support is built into the system UEFI BIOS code. Since the SM951 does not have it's own option ROM, this is an essential requirement to be able to install Windows 7/8.1 or Linux. Below is a general guide. Please ask a question here on Amazon or direct an enquiry to the seller if you want to double check compatibility. • Most Z97-based 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 • Most X99-based motherboards. Check your system documentation for details • All classic model Mac Pro computers (when combined with the Lycom DT-120) • i7 model Intel NUC • IMPORTANT NOTE - the SM951 is “not” compatible in MacBook, MacBook Pro, iMac, Mac Mini, or the current 'cylindrical' model Mac Pro. What's in the box - Bare SSD Drive in plain packaging (Bulk Packaged)
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Moving from an SSD to this is like night and day - everything loads immediately!
I used this PCI card to do the install - http://www.amazon.com/gp/product/B00RTSFLBY
This is the TIM I used to stick onto the heatsink : http://www.amazon.com/gp/product/B004230RUO
You may need to double up the TIM to manage the gap between the heatsink and the SSD but it seems to do its job, its only really needed over the controller which is the component closest to the connector. I didn't try to remove the sticker as it would invalidate the warranty.
in ATTO Disk Benchmark
2.24 GB/s Read
1.6 GB/s Write
in order to get the max out of this SSD in desktop environment have those tips for anyone who want to buy this SSD
1- you must make sure you have PCI 8x M2 socket on your motherboard or purchase a pci 3.0 to M.2 SSD adapter
2- turn off c-state in your bios it will give you extra performance
3- running this SSD with windows 10 have issues because no mature AHCI drivers yet for windows 10 so the max speed for read and write under windows 10 would be 1.7 GB/s and 1.5GB/s for read and write
4- under windows 8.1 with the latest intel AHCI/RAID driver for motherboard Asus Rampage V Extreme i was able to attain full speed for this SSD
5- you must install windows on this SSD using UEFI motherboard and in UEFI Mode it will not boot in legacy mode
6- you must understand how much lanes your motherboard have with you processor because to have full speed of this SSD it must be running on 4x PCI-e so for those who will run on X99 motherboard they will have plenty of lanes (40 lane ) on the other side z97 have only 16 lanes
This works on my ASrock Mini ITX x99-e ac motherboard. Follow tutorials online for how to install windows on it - really simple.
See pics fro size reference.
Very pleased with the drive and the fact that it uses a separate port on my MOBO leaving SATA ports for other drives.
The speed is amazing. I've purchased another similar M.2 drive and copying a 42GB file from one to the other takes less than 60 seconds.
Seq Read 2231 (MB/s), Seq Write 1562 (MB/s), Rand Read 110484 (IOPS), Rand Write 92908 (IOPS)
for comparison my 'regular' SSD; Intel SSDSC2CW120A3
Seq Read 535 (MB/s), Seq Write 516 (MB/s), Rand Read 52534 (IOPS), Rand Write 85955 (IOPS)