Samsung XP941 512GB M.2 NGFF PCIe 2.0 x4 SSD
Now confirmed compatible in desktop machines including the 2006-2012 Model Mac Pro!
The latest news on the XP941 is that it is fully compatible and bootable in all new Intel X99-chipset motherboards, and with most previous generation Z97-chipset based motherboards, such as the ASRock Z97 Extreme6 (no adapter required). To get the XP941 working in the ASUS Z97 Pro motherboard, see these excellent instructions. When combined with a M.2 to PCIe adapter, the Samsung XP941 provides class-leading storage performance in desktop machines and is also fully bootable in all cMP Mac Pro models (2006-2012, excluding the 'tube' model). See the table at the bottom of this page for approximate throughput figures.
****** WARNING *******
Do not run Parted Magic's secure erase on this drive. It will render it useless and void the warranty.
****** COMPATIBILITY NOTICE *******
If you intend to purchase this product as an upgrade for an existing smaller drive in a laptop, you should check if the existing drive is a Samsung XP941 or other M.2 PCIe SSD. If you intend to purchase this drive for installation in a desktop PC (with or without an M.2 socket), then please review our M.2 SSD compatibility list blog post or feel free to contact us via chat, email or phone (see top of our website for details).
****** Deep Sleep issues on the 2010 Mac Pro (16x slots only) *******
XP941 SSD's with first generation firmware were reported to have some issues, where if the Mac Pro is put to sleep for longer than 7 hours, then the restore from sleep mode did not work properly, and a hard reset was required to restore the system. Restoring from sleep for shorter periods of time worked fine. This issue does not occur in the 4-lane PCIe slots, and it's recommended that you install your XP941 and PCIe adapter there if you use the deep sleep function. **The currently shipping product has a newer generation firmware and lab testing has so far showed no issues with extended sleep and restore testing.**
* To achieve maximum throughput in the 2008 Mac Pro, one or two of the PCIe 2.0 x16 slots must be used. These models have two x16 PCIe 2.0 slots and two x4 PCIe 1.0 slots. The latter PCIe 1.0 slots will only allow up to 585-753MB/s data transfer rates.
** From the review at barefeats.com: "Using the 'Expansion Slot Utility' in the System/Library/CoreServices folder, we reconfigured the PCIe slot speeds to various combinations of 4, 8, and 16 lane slots to benchmark the XP941. The transfer speeds above were achieved using the 4 lane slots. The 8 lane and 16 lane slots did not produce any faster transfer speeds. On other other hand, if you use a 1 lane slot, the transfer speeds drop to 200MB/s READ and 170MB/s WRITE. We tested with both OS X Leopard and Snow Leopard. OS X Tiger kernel panicked at startup. Though we didn't try it, it should also work with OS X Lion, the last Mac OS to be officially supported on the 2006 Mac Pro."
*** To achieve the listed throughput rates on a PC/Workstations/Server platform, a PCIe 2.0 x4 or higher slot is required (e.g. PCIe 2.0 x8 or PCIe 2.0 x16). PCIe 1.0 slots may provide lower performance, depending on the number of PCIe lanes allocated to the slot.
****** COMPATIBILITY NOTICE *******
If you intend to purchase this product as an upgrade for an existing smaller drive, you should check if the existing drive is a Samsung XP941 or other M.2 PCIe SSD. Review our M.2 SSD compatibility list blog post if you are not sure if this drive is compatible in your machine.
Slim Package, Big Performance
The new Samsung XP941 M.2 PCIe SSD delivers a level of performance that easily surpasses the speed limit of a SATA 6Gb/s interface. With sequential data reads as high as an incredible 1,170MB/s (megabytes per second) on the 512GB model, the XP941 provides the highest possible performance available with a PCIe 2.0 interface.
The new standard
The Samsung XP941 SSD in the new M.2 form factor is set to supercede the older mSATA format. Weighing in at just 8g, it's 1/5th the weight of a standard 2.5-inch SSD and takes up just 1/7th of the space.
Consuming just 80 mW of power when idle, and 5.8 W when fully active, the Samsung XP941 delivers longer battery life without sacrificing performance.
Life in the fast lane
The Samsung XP941 interfaces directly with your system via PCIe, eliminating the speed bottleneck associated with older SATA based technology. Using up to 4 PCIe 2.0 lanes, this allows the 512GB model to deliver sequential performance like you've never seen before - up to 1170MB/s read and 950MB/s write.
For desktops and laptops
The new M.2 SSD format (previously known as NGFF - New Generation Form Factor) is compatible with the latest generation netbooks and notebooks containing a PCIe M.2 socket, such as the new Sony Vaio Pro.
To use this SSD in a desktop machine, you will need a free PCIe slot, and M2P4S M.2 (NGFF) PCIe base SSD to PCIe X4 Adapter ( here ). Note, system boot is not supported in a PC with the XP941 drive, but it works perfectly without drivers as a storage drive.
Review our M.2 SSD compatibility list blog post if you are not sure if this drive is compatible in your machine.
Rugged and reliable
With no moving parts, the Samsung XP941 provides extreme reliability and durability in adverse operating conditions, with a MTBF (Mean Time Between Failure) of 1,500,000 hours, and an operating tolerance between 0C and 70C temperatures. Combined with an AFR (Annual Failure Ratio) of just 0.6%, these features make the Samsung XP941 a dependable and high performance storage solution for your system.
The XP941 M.2 format SSD represents the very latest in ultra high performance storage, from Samsung - the world leader in advanced memory technology. It doubles the performance available from current generation 7mm, 9.5mm and mSATA format solid state drives, and delivers this in a package that takes up as little as 1/7th of the space.
Designed and Built by Samsung
Samsung SSDs are designed completely in-house, allowing exceptional quality control and engineering capabilities. Samsung also builds all of the main SSD components itself. The result is products with outstanding performance and reliability, designed to enhance your computing experience.
- Next-generation ultra-slim notebook PC's
- High performance gaming rigs
What's in the package
- M.2 PCIe format SSD drive
Other Details3 years
5 Reviews Hide Reviews Show Reviews
Another Asus X99 Deluxe user here. Using this as boot drive in M.2 slot and it's roughly twice as fast as my previous Samsung 840 Pro based on benchmarking software. As others have said, you need to install Windows 8 via UEFI installer from a USB stick (make an image from your Windows CD using Rufus). If you want the fastest available SSD this is the one to go for as of now.
This is my first NGFF drive and I am impressed! >1Gb/sec is a god send as I transfer lots of large media files. Installation is a breathe; as previously noted, windows should be installed via UEFI installer. If however you are like me and wishing to transfer your existing Windows set up then a "straight forward" clone to this SSD will not work, instead follow these simple steps: http://www.tomshardware.co.uk/answers/id-1901828/uefi-boot-enabling-preinstalled.html
The process sounds more complicated than it actually is; I was up and running in 10 minutes!
A very very nice super fast SSD, one thing worth mentioning though is you have to install windows via a USB with windows UEFI installer the instructions are here http://www.eightforums.com/tutorials/15458-uefi-bootable-usb-flash-drive-create-windows.html
Hope that helps anyone else with the "Windows cannot install on this drive error".
Thanks Flexxmemory your the only guys in the UK that I could find that stock this drive. Speedy service too at a busy time of year! 5 out of 5
Just works - fantastic. Transfer speeds > 1Gb/s. Used in M.2 slot in Asus X99 Deluxe. Used as boot drive for Win 8.1.
I thought I would give this new M.2 specification a go in the new X99 motherboards and all I can say is WOW. Its a match made in heaven. Things load almost instantaneously. Super impressed well worth the little extra over a normal SSD drive.