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OWC Accelsior S PCIe Adapter for 2.5" SATA III SSD Drives
OWC Accelsior S
Storage Expansion With a Speed Boost
Add a 2.5" SATA 6G Drive to your Mac or PC
- Directly mount any standard 2.5" drive.
- Up to 550 MB/s sustained speeds.
- Enhance SATA 3Gb/s systems with SATA 6Gb/s support.
- Easy installation. No drivers required.
Give Your Mac Pro Tower or PC a 6G Performance Boost
Accelsior S is the simple solution to add a high speed SATA 6G drive to PCs or silver Mac Pro towers otherwise restricted to 3G architecture. Combined with a high-performance SSD, Accelsior S brings cutting edge 6G performance to your SATA 3G system.
Internal Storage Expansion at Lightning Speed
With more than 500 MB/s of throughput, the Accelsior S dual-lane PCIe 2.0 card delivers flexible storage expansion - with a speed boost - to your Mac or PC. Accelsior S is the perfect complement to OWC's Mercury family of high-performance SSD's, allowing up to an extra 1TB of fast storage expansion.
Just Plug and Play
Mount a 2.5" drive to the Accelsior S, install in any available PCIe x4 (or greater) slot, and you're up and running with expanded high-speed storage. Use as a native, high-speed, boot drive or scratch-disk and boost capacity and performance. With no drivers or extra software needed, upgrading your PC or legacy Mac Pro tower with Accelsior S is a breeze.
OWC Accelsior S is compatible with:
Mac Pro Mid 2010 Quad-Core Model ID: MacPro5,1
Mac Pro 4-Core Model ID: MacPro5,1 MacPro4,1 MacPro3,1 MacPro1,1
Mac Pro 6-Core Model ID: MacPro5,1
Mac Pro 8-Core Model ID: MacPro5,1 MacPro4,1 MacPro3,1 MacPro2,1
Mac Pro 12-Core Model ID: MacPro5,1
Xserve Model ID's: Xserve2,1 Xserve1,1
Xserve Quad-Core Model ID: Xserve3,1
Xserve 8-Core Model ID: Xserve3,1
PC Desktops: Compatible with Intel / AMD Process based PCs capable with the specifications listed above.
PCIe capable servers: Compatible with PCIe expandable servers with the specifications listed above.
OWC Mercury Helios Thunderbolt PCIe expansion chassis
NOT COMPATIBLE: HP DL 380 G7, HP DL 380 G8, Dell PowerEdge R620, Dell PowerEdge T620
Drive Compatibility: When used together, the Accelsior S and the 2.0TB Mercury Electra 6G SSD are compatible with the MacPro4,1 series and MacPro5,1 series. This device combination is NOT compatible with the MacPro1,1 MacPro2,1 or MacPro3,1 series.
Note about throughput:
- PCIe 2.0 x4 slot or better is required. Use of a PCIe 1.0 x4 slot will reduce performance.
- 2009-2010 Mac Pro. Installing Accelsior S into any open x4 or x16 PCIe 2.0 slot will deliver full throughput
- 2008 Mac Pro. These models have two x16 PCIe 2.0 slots, which enable Acceslsior S to deliver full throughput. Installing Accelsior S into of the two x4 PCIe 1.0 slots will result in Accelsior S being addressed as a gen one, one-lane card with performance limited to real world 190-200MB/s data rates. 2006-2007 Mac Pro. These models utilize PCIe 1.0 slot which cannot be configured (even with the Expansion Utility in OS X) to address Accelsior S as anything but as a first generation one-lane card. As a result, Accelsior S performance will be limited to 190-200MB/s data rates. If maximum data rate speedis desired, we recommend the installation of a 2.5" OWC Mercury SSD in an open Mac Pro drive bay.
Accelsior S Specifications:
OWC Part Number: OWCSSDACL6G.S
Interface: PCIe 2.0 x 2
AHCI Compliant: Yes, Plug and Play Installation, no drivers required
RoHS Compliant: YES
PCIe-SATA Bridge: ASM1062
Performance: Read: up to 550MB/s, Write: 530MB/s
Operating system compatibility:
Mac OS X 10.6 and up,
Windows Server 2008 and higher,
Not compatible as a Windows boot drive on a Mac
Supported Mechanisms: All 2.5" HDD and SSD SATA 1.5, 3.0, 6.0Gb/s.
Form Factor: full height, half length
Operating Temp: 32°F to 158°F/0°C to 70°C
Non-Operating Temp: −40°F to 185°F/−40°C to 85°C
Acoustics: 0.0 bels for both Idle and Seek
dshep1964
Reviewed in the United States on December 24, 2024
If you’re needing a bump in data speeds with a classic MacPro, this little gem is perfect. OWC makes great Mac parts that always have zero compatibility issues. Add a drive, plug it in, and you’re done!
ND初心者
Reviewed in Japan on December 10, 2023
MacPro2010で使用するため購入した。従前はｘ１接続であるが安価なSEDNA - PCI Express (PCIe) SATA III (6G) SSD Adapterを使っていたので、PCI-Ex1がボトルネックなり最高390MB/s程度が限界であったが、本製品を使用することにより、同じSSDが550MB/Sに向上したのでありがたい製品である。載せ替えの際も、従前のアダプターがSSDを外して当製品に取り付けるだけで、そのまま認識できたので、非常に簡単であった。
Kelly_41m
Reviewed in Canada on August 5, 2022
Pros - Convert older systems with outdated sata hardware to boot from faster SSD.Cons - Has only 2 PCIe lanes.If installing in a older PCIe version 1.0 board, maximum throughput is 500 MB/s (250 per lane). Thus an ssd with 550 or better rating will swamp the buss.I installed this in an older Tyan S2927 motherboard (with dual quad opterons) to increase boot and general usage speed, and this card delivered when paired with a 180 GB intel SSD. Maximum throughput I was able to measure (using ATTO SSD benchmark) was 390 MB/s. Far better then the Velociraptors in raid 0 coming in at around 250 MB/s.As a note for anyone wanting to try this card. I backed up the Tyan S2927 system (created an image of drive C) and created a System Repair CD (using windows 7 backup included in Windows 10). I then copied the drivers for this OWC board onto the root directories of drives D and E.I then removed the existing Adaptec raid card, installed the OWC card, booted the machine using System Repair CD I created earlier, selected restore from image. When done, rebooted machine and Windows 10 found the drivers (root directory of D or E) and it (machine boot successfully). I then deleted the drivers from both root directories of D and E.So far no issues and is nice to have a 50% gain in performance relative to Drive C (Boot).
Giuseppe
Reviewed in Italy on May 13, 2022
Acquistata per installare una SSD su MacPro 3,1. Funziona perfettamente ed è riconosciuta immediatamente dal Sistema Operativo. Prestazioni AJA video systems in scrittura 178 MB/SEC in lettura 177 MB/SEC. Spedizione Amazon velocissima.
mike C.
Reviewed in the United States on October 12, 2022
I purchased this card because it's Taiwanese! The Accelsior S gave me 453+ Mbps on my (Taiwanese) Avolution 480 Gb ssd. It's a very good upgrade for my ol' Asus Essentio CM1630! No problems, no drivers, just plug it in! It was immediately recognized by my system. And it has a pretty little blue light on while it functions in the system. Swapping it out from my Apricorn Velocity Solo wasn't a problem but, I did have to re-designate the bios' boot order and drives, i.d.k. why but maybe because my bios is old but it really wasn't a problem. The Accelsior S (as I understand) may be closer to 6G ( i.d.k.) but did give me higher Mbps., I just like Taiwanese products in my Asus (if I can) The integrity is good with this PCie card and my system is stable.
nacirema
Reviewed in Germany on January 11, 2022
Ich nutze seit mittlerweile 13 Jahren (!) einen Mac Pro für Fotos und Datenarchivierung. Trotz 12GB RAM und einer WD Velociraptor als Startvolume wurde er mit der Zeit so langsam, dass ich den alten Mac ersetzen wollte.Um ihn eine letzte Chance zu geben, kaufte ich diesen PCIe Adapter und eine SSD. Einbau war sehr einfach und das Laufwerk wurde sofort erkannt. Plug&Play wie es sein soll. Ich habe mein Backup auf die SSD aufgespielt und war positiv von der Performance überrascht. Lightroom startet in einem Bruchteil der Zeit und Fotos werden Instant scharf geladen. Gefühlt ist das ein neuer Rechner.Die Investition hat sich voll gelohnt.
DamianR
Reviewed in the United Kingdom on March 2, 2019
This is a relatively recent discovery for me. I have had SSD drives running in my mid 2010 Mac Pro for a couple of years (5 SSD drives in fact). I recently happened upon a guy on youtube pointing out that the SATA in my Mac is in fact SATA2 and therefor rather throttling the potential performance of my SSD drives. So that led me to these wonderful SATA3 cards.I ordered 2 of these. One for my boot drive and one for a media drive. These took up the remaining 2 slots in my Mac - the other 2 are used by the graphics card and a USB3 card.They are supplied in stout boxes well packaged and with excellent instructions. Installation is very straight forward. Plug the SSD Drive on to the card and fix with the 4 provided screws. Insert into an available slot and power up - that's it.I was initially rather perturbed, on booting with these cards installed, that it took a long time from the chime to the Apple logo appearing (around 40 to 50 seconds!). What solved this in the end was re-pointing to the start drive in the preferences, even though it was already selected. I would say that boot time is pretty much unaffected by these cards for me. But then I do have a large number of peripherals hanging off my Mac - 23 USB devices in total. But I have noticed the general running of things is now much slicker. The tests with Blackmagic Disk Speed Test bear this out.As others have pointed out, the Mac sees drives on these cards as external and therefor colours them orange on the desktop. There was something not quite right for me about seeing my boot drive displayed like this so I changed the icon to something more standard by copying and pasting within 'get info'!Those looking for a cheaper option to these OWC cards should be aware that the cheaper cards may not actually run SATA3 drives in SATA3 mode because they don't have the proper SATA3 drive circuitry that these OWC cards have. Seems you get what you pay for yet again!I'm really pleased with my purchase of these OWC cards. They have given my rather maxed out Mac Pro a bit more Max!
TwoMetreBill
Reviewed in the United States on January 3, 2019
Update: after almost 2 years, it is performing flawlessly. OWC products tend to be a little more expensive but they just work. I've upgraded the drive to a 2TB Samsung 860 EVO and it is dedicated to Lightroom: Lightroom, catalog and caches.The performance results will follow but first a note to HP Workstation users. I'm on my 4th HP workstation over the past 15 years and one common factor (seems to be true of Dell Workstations as well) is that the PCI slots tend to have strange requirements. I'm talking about true workstations, not desktops. My current machine is a HP Z440 with 6-core Xeon, 64GB of ECC RAM and a HP 512GB NVMe drive (all from the factory).I've been running a Samsung 1TB 840 EVO for several years (this machine and a previous HP Z420) in an external case connected to a USB3 hub. With this configuration, it is only about twice as fast as an external hard drive. So I purchased this OWC card from Amazon as a holiday present to myself to improve the performance of the drive. However when the card is placed in PCIe Slot 3 (an X4 slot), which should work fine; the machine cannot boot up. Note that this is not the boot drive. Error 928 Fatal PCIe Error. According to HP documentation, the HP NVMe drive won't work in this slot either.Moved the card to PCIe Slot 5, an X16 slot, and the card works fine. I'm disappointed because I really wanted to run 2 of these cards in my machine, such is life.Now for the performance, keeping in mind that this drive was handicapped running through the USB3 hub.2 different performance tests:Test 1. copying a folder containing 450 files, 7 folders and 33.9GB of filesTest 2. copying a folder with a single 5.5GB fileOld configuration (SSD externally connected)Test 1 - copy from SSD to NVMe - 14min 10secTest 1 - copy from NVMe to SSD - 15min 7secTest 2 - copy from SSD to NVMe - 2min 19secTest 2 - copy from NVMe to SSD - 2min 27secNew configuration (SSD on OWC card)Test 1 - copy from SSD to NVMe - 1min 8sec == 12 times fasterTest 1 - copy from NVMe to SSD - 3min 22sec == 4.5 times fasterTest 2 - copy from SSD to NVMe - 4sec == 34 times fasterTest 2 - copy from NVMe to SSD - 4sec == 36 times faster
AC
Reviewed in the United States on January 29, 2017
Installed in a MSI X58 Pro 1366 socket with tri-channel memory, a system I built in 2009. This Motherboard/system was limited to SATA II (3Gbps) so after buying a Samsung 850 EVO SSD I wanted to get full speed. My system is dual boot (Win 10 & Fedora 25). I installed the card in a PCIe x16 slot that operated at a max of PCIe X4. Basically no issues. I was concern there was going to be an issue with the Samsung SSD being dual boot but definitely plug and play couldn't be easier. I noticed during boot that the PCIe bus speeds registers as PCIe 2.0 x2 and NOT PCIe 2.0 x4 but not an issue as both speeds are faster that SATA III (6Gbps). My speed measured using the Samsung Magician software went from approximate: (284 read, 271 write randoms; 52409 read, 41961 write IOPS on SATA II to 553 read, 526 write; 88649, 71680 respectively with the OWC adapter card). Yes I can tell the difference in boot to both Windows 10 and Fedora Linux is about half but it was very fast anyways after upgrading to SSD from Hard Drive. Windows 10 went from 15 seconds to 8 seconds on the boot while Linux went from 8 seconds to 5 seconds but in the Linux boot there is a program that is configured to take 6 seconds on boot so very fast if I was to turn it off or reduce it! Note: CPU i7 920 OC to 3GHz from 2.6GHz, OCZ DDR3 1333 ram OC from 1066 to 1500 MHz. Graphics is now Radeon RX 460 OC with 2GB Ram, 500W power supply, and 2 DVD drives, Creative XFi sound card and old Zoom modem 3025C that doesn't work with Windows 10. I have one PCIe x16 slot left and 1 old PCI slot left all in a ELITE Mid or Medium tower case. In all honesty I didn't need the upgrade as the system was very fast already for mainly browsing the internet but the OWC card performs as advertised. I would definitely rate this as a buy to extend the life of an older computer.
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