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Item#: N82E16816124060

SYBA SI-PEX40057 PCI-Express 2.0 x2 Low Profile SATA III (6.0Gb/s) 4-ports RAID Card

  • RAID 0 / 1 / 10
  • 4 x SATA 6.0 Gb/s Internal Connectors
  • Up to 6 Gb/s

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

The SYBA SI-PEX40057 RAID card gives you an easy way to add additional four internal SATA III ports to your computer, through a single PCI Express slot. The SATA III ports offer a blazing-fast speed of 6Gbps, while remaining backward compatible with the SATA I and SATA II specifications. It provides full RAID functionalities, and supports Port Multiplier FIS Based or Command Based switching, ensuring maximum performance.

Additionally, this card is bootable, and features hot plug and hot swap functions. The included low-profile bracket makes installation in compact cases a breeze.

general information

Four SATA III ports

The SYBA SI-PEX40057 RAID card adds up to four internal SATA III ports to your computer system, allowing you to easily connect four additional HDD/SSD drives.

High Speed

The SATA III ports deliver a blistering fast data transfer speed of up to 6Gbps, letting you transfer monstrous amounts of data in seconds. They are also backward compatible with SATA I (1.5Gbps) and II (3Gbps) standards.

general information

Excellent RAID Function

The SYBA SI-PEX40057 RAID card boasts a rich set of RAID functionalities, including:

  • RAID 0-Striping (Stripe Size: 32K, 64K)
  • RAID 1-Disk Mirroring
  • RAID 10-Stripe of Mirrors (Stripe Size: 32K, 64K)
  • HyperDuo Safe (Mirrored Protection) or Capacity-Cost (Optimized)
general information

Port Multiplier Support

Thanks to the built-in support for SATA Port Multipliers with FIS-based switching or Command Based switching, this card can allows you to easily connect more HHDs/SSDs at once.

Note: *This card does not support more than four Drives for Linux and Mac OS. Even if used with a port multiplier, max drives accepted is four drives.

general information

Native Command Queue (NCQ) Support

This card supports Native Command Queue (NCQ), allowing hard disk drives to internally optimize the order in which received read and write commands are executed. This can reduce the amount of unnecessary drive head movement, resulting in increased performance.

general information

Hot- Swapability

This card supports hot plug and hot swap functions. Simply plug it into your computer system, and it’s ready to work.

general information

Great Compatibility

The SYBA SI-PEX40057 RAID card is compliant with PCI-Express specification V2.0. The PCI-Express x2 interface is compatible with PCI-Express x4, x8, and x16 slots.

general information

Low Profile Ready

With the included low-profile bracket, this card can be effortlessly installed into desktop computers of various sizes.


Learn more about the Syba SI-PEX40057

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): Lifetime
  • Limited Warranty period (labor): 1 year
  • Read full details

Customer Reviews of the Syba SI-PEX40057

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  • Ronald M.
  • 12/17/2015 12:34:43 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsNot a recommended buy

Pros: HDD is sometimes recognized

Cons: "Supports communication speeds of 6.0 Gbps"
actual throughput of PCI-e is at most 1 Gbps
No drivers on site; report a problem at driver page does not work.
Manually located driver for marvel chipset; device now recognized; drive now recognized.
Drive is disconnected without user intervention and is now reporting smart errors. one single drive; no raid functionality in use at all; and it's not working properly.
I will not buy another product from syba; I will not recommend Syba proudcts; I will not buy recommend their rebranding "IOCrest" either.

Other Thoughts: Disease infested refuse; I'm not going to buy from syba again; what's the point of buying a device that won't work from a company that has one support guy having to manage support call tickets and posts and their website for every last product?

Manufacturer Response:

Dear Customer,

We apologize for the issues you've experienced with this PCI Express RAID Card and the delayed response.

We do have drivers available for item SI-PEX40057 on our new website (sybausa.com). You might have accidentally gone to our old Syba website that does not have them.

Our technical support team is available now to help 9am-5pm M-F. Feel free to contact us during those business hours.

Thank you for purchasing one of our products, and for leaving us your valuable feedback.
- Regards, SYBA CST 20160108

1 out of 2 people found this review helpful. Did you? Yes No

  • Jim G.
  • 8/25/2015 10:53:35 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsBE Careful when Buying This

Pros: Worked, However it Kills my audio. I have contacted SYBA support, but so far no response from them. Result is I have a card that Useless.
I have an Asus 5E3 Deluxe Motherboard. When I plug this card into the PCIe X16 slot expansion slot, my audio driver is removed. These are shared expansion slots so I am assuming something is not written correctly in the driver of the card to allow it to work in shared slots. Motherboard manual say you may have to configure card in bios. But did not see anything in the bios to set up regarding this card.

Cons: Has conflicts Kills Audio in my system. No response from Syba support team which claims they respond in 24 hours. Have tried talking with Asus support but they had little help to offer on this problem.

Other Thoughts: Since I was very busy and did not have a chance to try this card. I cannot return it to Newegg. My Bad! But Syba should step up and help me trouble shoot this problem. But they have not.

Manufacturer Response:

Dear Customer,

We apologize for the issues you have experienced with this controller card.

Our Support team is more than happy to assist you with setup and configuration of this adapter.

SYBA offers an online RMA form, the user can easily fill out the form and submit it for a quick RMA return and exchange. It is SYBA's policy to answer all customer inquiries within 24 hours (M-F).

Thank you for purchasing one of our products, and for leaving us your valuable feedback.

-Regards SYBA CST 08282015

1 out of 3 people found this review helpful. Did you? Yes No

  • Tony N.
  • 5/18/2015 12:24:54 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

2 out of 5 eggs

Pros: So.. it works. the trouble is that I ordered a SYBA card and got an IOCrest card. Same card, different brand name. I spent the extra money to get this card.. Don't know what to do. Works well and the dual lane pci express really rips at around 480mb/s on a sata3 (there's always thrash, but whatever), previously on a 1x pci express 2.0 port I was topping out at around 340

Cons: Bought a SYBA, got an IOCrest card... same controller so I'm assuming it's basically the same product.

Manufacturer Response:

Dear Customer,

We apologize for the issues you have experienced with this controller card.

We are more than happy to provide all of our customers with information pertaining to our controller card.

IOCrest is a subdivision of Syba specializing in our standard, and RAID capable controller cards.

Thank you for purchasing one of our products, and for leaving us your valuable feedback.

-Regards SYBA CST 05292015

3 out of 5 people found this review helpful. Did you? Yes No

  • Chris W.
  • 5/16/2015 9:20:27 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsNot for RAID

Pros: Works as a SATA expansion card.

Cons: Not usable as a RAID solution. The original and the replacement cards that I have received both have had basic functionality, but do not respond when pressing Ctrl+M to enter the RAID setup.

Other Thoughts: Look elsewhere if you are trying to put together a RAID array.

Manufacturer Response:

Dear Customer,

We apologize for the issues you have experienced with this controller card.

Please note that you will need to set your motherboard SATA configuration to AHCI for this card.
When attemptin to enter the card BIOS you may need to enter the 'Ctrl + M' earlier than the splash that is displayed on your monitor. If you are using a system with rapid start/quick boot the window timing may be off from what is displayed rendering you unable to enter the command at the correct time.

Our tech support team is happy to assist you with installing and configuring this device for your system.

Thank you for purchasing one of our products, and for leaving us your valuable feedback.

-Regards SYBA CST 05292015

1 out of 2 people found this review helpful. Did you? Yes No

  • Jonathan W.
  • 4/20/2015 9:37:47 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsWorks-- but beware of chip PM compatibility

Pros: - Worked out of the box, no issues with directly connecting drives
- No issues with PCI passthrough in ESXi

Cons: - When used with SYBA SI-PCI40074 (JMB321 chip), you only get 4 out of 5 ports on the PM card.

Other Thoughts: Beware of Marvell/JMicron port multiplier compatibility

This uses the Marvell 9230 chipset, which is theoretically PM-aware. When used with the SYBA SI-PCI40074 and the JMB321 chip, the port multiplication works-- sort of. It seems that the Marvell chip will only see 4 out of 5 ports on the port multiplier card (even though both seem to be PM-compatible/aware). No indication of this incompatibility in either the JMicron or Marvell chips.

Other than that, it works fine.

Manufacturer Response:

Dear Customer,

We apologize for the issues you have experienced with this controller card.

Unfortunately most chipsets on these stand alone controller cards will only see 4 of the 5 additional ports when using a Port Multiplier. Marvell and ASMedia chipsets seem to be the main chipsets which will limit the number of active ports.

Only Silicon Image chipsets have been known to see all 5 ports.

Thank you for purchasing one of our products, and for leaving us your valuable feedback.

-Regards SYBA CST 05292015

1 out of 2 people found this review helpful. Did you? Yes No

  • JOSH S.
  • 4/7/2015 1:03:29 PM
  • Ownership: less than 1 day

2 out of 5 eggsWouldn't work with Dell server

Pros: It was in a box

Cons: Wouldn't work with a Dell sc1435 server running Debian Jessie. Ports were detected but no SATA links could be made.

Shipping was poor, box was damaged.

Seven dollar restocking fee.

Other Thoughts: Get something better off of 3bay, like an LSI 9211-4i for double the price.

Manufacturer Response:

Dear Customer,

We apologize for your dissatisfaction with the quality of this controller card.

We are more than happy to provide all of our customers with a prompt exchange whenever a product becomes defective.

SYBA offers an online RMA form, the user can easily fill out the form and submit it for a quick RMA return and exchange. It is SYBA's policy to answer all customer inquiries within 24 hours (M-F)

Thank you for purchasing one of our products, and for leaving us your valuable feedback.

-Regards SYBA CST 04102015

1 out of 1 people found this review helpful. Did you? Yes No

  • Michael S.
  • 3/19/2015 7:26:41 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggs

Pros: WORKS FOR MY BLU-RAY PLAYERS

Cons: WINDOWS THINKS THEY ARE REMOVABLE FLASH DRIVES

3 out of 3 people found this review helpful. Did you? Yes No

  • David W.
  • 1/30/2015 8:35:22 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsWow

Pros: I did benchmarks running a SSD drive hooked up to SATA II, SATA III with no drivers and SATA III with drivers. Wow is all I can saw with this card. My speeds went from 100k to 500k to 3M megs per second on the read and writes. Use to take 10 min to boot now at 3min total time.

Cons: None I love this card.

3 out of 3 people found this review helpful. Did you? Yes No

  • Robert C.
  • 1/27/2015 9:22:31 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsFailed very quickly, never RMA'ed

Pros: It seemed like a dream come true. But it was too good to be true.

Cons: RAIDs were unstable and failed after only a few hours or minutes. Eventually became unusable. I was sick of messing with it so I didn't want a replacement and it was too late to get a refund.

Manufacturer Response:

Dear Customer,

We apologize for your dissatisfaction with the quality of this controller card.

Our tech support team is more than happy to provide any information you may need when determining the compatibility and specification of a device.

We are more than happy to provide all of our customers with a prompt exchange whenever a product becomes defective.

SYBA offers an online RMA form, the user can easily fill out the form and submit it for a quick RMA return and exchange. It is SYBA's policy to answer all customer inquiries within 24 hours (M-F)

Thank you for purchasing one of our products, and for leaving us your valuable feedback.

-Regards SYBA CST 01292015

1 out of 2 people found this review helpful. Did you? Yes No

  • Anonymous
  • 1/1/2015 4:03:11 PM
  • Ownership: 1 week to 1 month

5 out of 5 eggsWorks great for jbod

Pros: - full SSD speed due to x2 interface
- adds extra sata ports as intended

Cons: na

1 out of 1 people found this review helpful. Did you? Yes No

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Syba > 
Item#: N82E16816124060
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