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4 Port PCI Express 2.0 SATA III 6Gbps RAID Controller Card with HyperDuo SSD Tiering

Add 4 Internal SATA III (6Gbps) ports to a computer through a PCI Express x2 slot

Product ID: PEXSAT34RH

  • Supports HyperDuo SSD auto-tiering
  • 4 AHCI SATA III (6Gbps) ports through PCI Express x2
  • Fully compliant with SATA 3.0 specifications and backward compatible with SATA I/II (1.5/3.0Gbps) drives
View More
  • Supports hardware RAID 0, 1, and 1+0 modes configured through BIOS
  • Compliant with PCI Express 2.0 standards
  • Port Multiplier FIS-based and Command-based switching supported
  • Natively supported single chipset design
  • Simple HyperDuo configuration via card-BIOS level or intuitive GUI console (Windows® only)
  • Supports Native Command Queuing (NCQ) and ATA/ATAPI commands
  • Includes Low Profile/Half-Height installation bracket
  • Supports HDDs/SSDs/Optical/Blu-Ray drives
  • LED headers for HDD activity LED indicators
£95.99 GBP exc VAT
£115.19 GBP inc VAT
130+ In stock
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Technical Specifications

Warranty Information
Warranty 2 Years
Bus Type PCI Express
Card Type Standard Profile (LP bracket incl.)
Chipset ID Marvell - 88SE9230
Industry Standards PCI Express 2.0
Serial ATA 3.0 specification
Interface SATA
Port Style Integrated on Card
Ports 4
ATAPI Support Yes
Bootable Yes
Hot Swap Capability Yes
LBA support 48-bit
Max Drive Capacity Currently tested up to 4TB per drive
Number of Drives Supported Through Port Multiplier 1 to 4
Number of Ports That Support Port Multiplier 4 (can only use 1 PM at a time)
Port Multiplier Yes
Supported RAID Modes JBOD - (Just a Bunch of Disks)
RAID 1 (Mirrored Disks)
RAID 0 (Striped Disks)
RAID 10 (1+0, Striped set of Mirrored Subset)
Type and Rate SATA III (6 Gbps)
Connector Type(s) 1 - PCI Express x2 Male
Internal Ports 4 - SATA (7 pin, Data) Plug
OS Compatibility Windows® XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Mac OS® 10.6 to 10.14
Linux 3.5.x to 4.11.x LTS versions only
Special Notes / Requirements

The maximum throughput of this card is limited by the bus interface. If used with PCI Express Gen 1.0 enabled computers, the max throughput is 2.5 Gbps per lane. If used with PCI Express Gen 2.0 enabled computers, the max throughput is 5 Gbps per lane.

Only one port can use the Port Multiplier feature at a time. Supports up to 4 drives connected via Port Multiplier, 7 drives total.

Port Multiplier not supported in Mac OS.

Note: Connected drives cannot be used as System / Primary drive in Windows Server 2012, 2012 R2, 2016

The Marvell Storage Utility application requires macOS 10.9 to 10.14.

System and Cable Requirements Available PCI Express x2 slot (backward compatible with x4, x8, and x16 slots)
Humidity 20% ~ 80% RH
Operating Temperature 5°C ~ 50°C (41°F ~ 122°F)
Storage Temperature -25°C ~ 70°C (-13°F ~ 158°F)
Physical Characteristics
Product Height 2 cm [0.8 in]
Product Length 70 mm [2.8 in]
Product Width 12 cm [4.7 in]
Weight of Product 49 g [1.7 oz]
Packaging Information
Package Height 32 mm [1.3 in]
Package Length 17.5 cm [6.9 in]
Package Quantity 1
Package Width 14.5 cm [5.7 in]
Shipping (Package) Weight 141 g [5 oz]
What's in the Box
Included in Package 1 - PCIe SATA Controller Card
1 - Low Profile Bracket
1 - Driver CD
1 - Instruction Manual


View full OS compatibility
Windows® XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Mac OS® 10.6 to 10.14
Linux 3.5.x to 4.11.x LTS versions only


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4 Port PCI Express 2.0 SATA III 6Gbps RAID Controller Card with HyperDuo SSD Tiering

Customer Reviews

2.7 (13 reviews)
2.7 out of 5 stars
Quality of Product
Tell us what you think of this product.

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1 - 13 of 13 Reviews

(1 star) Nothing but problems...

By: jmaeshawn
I purchased this card so that I could add 3 additional SATA hard disk drives to my PC, because my motherboard's 12 SATA ports are all being used. However, the card has caused me nothing but headaches. When I first installed the card, it appeared to be working fine because the hard drives all showed up during POST. It booted into Windows and the hard drives all appeared in My Computer and in disk manager... But that was only for less than 5 minutes. After that, the three hard drives vanished from My Computer and Disk Manager as though they had been unplugged. In an attempt to make the drives show up again, I restarted my computer, only to have it freeze during the Windows boot logo three times in a row. When I read that freezing during boot was a sign of a faulty card, I ordered a second card thinking that I must have just been unlucky with the first. But the second card has the exact same issues as the first! This means that either my luck is REALLY bad, or (more likely) most/all of these cards are defective or bad by design. The three hard drives work properly when attached via a SATA to USB adapter, or when attached directly to the motherboard with either of two brands of SATA cables, so the drives and cables aren't the problem. In my trial-and-error tests, I found that the only thing that differs between when the hard drives work and when they don't is when they are attached via this card. Therefore, it'd definitely be better to look elsewhere if you need an easy to use, stable, and reliably-working PCI-e to SATA card.
Comment Helpful? Yes - 0 No - 0 Report
Response from
Matt, Customer Support
We pride ourselves on our high-quality standards and are sorry to hear about the difficulties you've experienced when installing our PEXSAT34RH. As you're seeing the exact same behavior with both cards it sounds like this may be more related to a chipset conflict between the specific chip used on this card and one of the chipsets used on your computer's motherboard. These problems are very rare but unfortunately when they occur the only option is to look at a card that uses a different chipset.

(1 star) UEFI

By: Agini
I was glad to find new UEFI bios for the card, yet my external drive connected does not show anymore. When viewing in MSU Software its seems to be a problem with a SATA 3G/Bit fault in the controller. My 6G/bit drives works fine. Is there a solution to this problem.
Comment Helpful? Yes - 0 No - 1 Report
Response from
Matt, Customer Support
We apologize for the difficulties you're experiencing with our PEXSAT34RH. This is not expected behavior and we'd like to speak with you further so we can investigate this. Please contact us at where our Technical Advisors are available 24 hours a day, 5 days a week to provide assistance.

(1 star) Card not working in PCIe x16 slot

By: PCJohn
Trying to get this card working in a Dell Optiplex 3060 box. The motherboard has 3 PCIe x1 slots and 1 x16 slot. The manual stated that it will work in an x16 slot, but after installing the card and booting, the Dell logo pops up and just sits there. It has been like this for a hour and I cannot even enter BIOS. Apparently, your documentation isn't worth the paper it's printed on. The card is worth even less. I'll be returning it today unless I hear from support.
Comment Helpful? Yes - 0 No - 3 Report
Response from
Matt, Customer Support
We apologize for the difficulties you've experienced with our PEXSAT34RH. This card uses a PCI Express x2 connector and is compatible with any slot that's x2 or lager. If the slot in the computer works with other cards, but installing this is causing your computer to freeze when booting up, it could indicate that the card you received may be faulty. We'd be happy to look into this further with you. Please feel free to contact us directly at where our Technical Advisors are available 24 hours a day, 5 days a week to provide support.

(5 stars) Good choice for disk failure recovery.

By: gregp6
I have bought 6 of these and used them for SuSe Linux Enterprise and OS/2 as the boot drive device using raid 1. They all have worked without any problems. The throughput is good but not as fast as not having a raid. I bought a backup controller that can replace an existing one if needed. Easy to configure (once you discover the CRTL-M to enter setup).
Comment Helpful? Yes - 0 No - 0 Report

(1 star) I have this card and the computer does not see it

By: mxgirl75
I bought this card hoping to allow me to hook up a couple more SATA devices. The system a Win 7 64 bit does not even see the card
Comment Helpful? Yes - 0 No - 0 Report
Response from
Matt, Customer Support
We're sorry to hear that your computer isn't seeing our PEXSAT34RH. Moving the card to a second PCI Express slot in the PC or trying the card in a second computer may help fix the issue or help identify where the problem lies. We're happy to help get this card working and have reached out at the provided email address to assist you.

(1 star) Windows 10x64 Update 1809 problem

By: 1809problem
Boot under 1809 possible, yet system significant slower than under 1803. Worst: my 4 RAID 10 HDD with the OS on it are shown as "removable drive". No proposals from MS & forums do the fix up-to-date.
Comment Helpful? Yes - 4 No - 7 Report
Response from
Malcolm, Technical Support
We apologize the PEXSAT34RH isn't behaving as expected in Windows 10 1809, and we'd like to look into this further with you. We have Technical Support Advisors ready 24 hours, 5 days a week, to help with issues, so please reach out to us directly using the "Chat Live" option above, or for other options, visit:

(5 stars) Great functioning

By: Barakna
Hi! I like the product, but I have a question. How can I disable the hot swat function under windows 10 in single disc mode? I was able to disable it in windows 7 in Device Manager, but in win 10 I can't find this function.
Comment Helpful? Yes - 2 No - 0 Report

(5 stars) Effective! Fast as! wonderful. Amazing for Gamers.

By: Adam2329
Hello, recently purchased. Spiceworks poster. Used this recently in a Gaming PC build, 2x 970 evo 512GB with 1x 6TB WD Blue = up to 800mbps throughput from or to NVME System drive. I had initial issues with conflicts but I eventually got the card and my system working. copied my existing HDD to it, launched some games. Games like total War: Warhammer have gone down as much as less then a minute from a fresh boot not to mention No man's Sky which will load in about a minute. HyperDuo is simply, incredible. Needed this card as I had a small case and I really needed more space for games, two of my four sata MB headers were blocked by fans so I saw this card and was keen to try the HyperDuo feature.
Comment Helpful? Yes - 0 No - 0 Report

(1 star) Missing JBOD

By: ir88ed
As with a keke27, I too am unable to find a JBOD option using the "card bios" method for installation in a linux rig. Two disks are plugged in, and the only options are Raid1 and Raid0.
Comment Helpful? Yes - 4 No - 2 Report
Response from
Brian, Customer Support
Thanks for sharing your feedback with us. There's actually no need to enter the card's BIOS to configure the drives for JBOD use. By default, they will function as independent drives. The BIOS only needs to be used if you wish to configure a HyperDuo or RAID.

(5 stars) Simple, functional, and fast.

By: Nick0422
I had to do very little to get this working. Installed in a Linux server, booted into the card BIOS, configured the RAID and done. It presented the drive to the OS as configured, and throughput was better than I expected (first time using a StarTech controller, so I WAS apprehensive) given the list price. The small size makes for it not getting in the way inside the case or obstructing airflow. I received this product in exchange for an unbiased review.
Comment Helpful? Yes - 1 No - 2 Report

(3 stars) Unstable work

By: Andrey74
Disks connected to the card are unstable. Speed first 450 MB / s Then drops to 100 MB / s. Mac OS 10.12.3
Comment Helpful? Yes - 3 No - 2 Report
Response from
Brian, Customer Support
Hi Andrey, Drive performance can really vary at times - especially if writing lots of small files to your drive. Please try copying a single large file (ex 10 GB), if you're using a solid state drive connected to our card, it should perform much closer to 450 MB/s. Please contact our Support team if you'd like to take a closer look at the situation with us.

(5 stars) Great value

Been using it for almost two years now and it's worked consistently good. Used it to connect an internal 4TB drive and my comp case's top HDD docking station, and it does better than expected at both (allows drive hot swapping without issues). Data transfer speeds are just as expected. Totally recommended.
Comment Helpful? Yes - 2 No - 0 Report

(1 star) Missing JBOD

By: keke27
On the Tech Specs tab it states that JBOD is supported. I bought this card solely for this purpose. It took me hours to figure out that JBOD is NOT supported. It seems to be an adequate card in general, but, for me, it was a waste of money and time.
Comment Helpful? Yes - 4 No - 8 Report
Response from
Barry, Customer Support
Hello, Thanks for sharing this feedback with us. We wanted to ensure you that JBOD is indeed supported with this card. However, we are aware that JBOD is defined differently depending on where you look. We define JBOB as a set of disks that operate individually from each other. Whereas other sources cite JBOD as a set of disks that are spanned or concatenated together to function as one disk. We refer to the second as BIG, something this card cannot do. We would suggest speaking with our technical advisors if you would to discuss this further. Thank you.