SYBA SY-PEX40039 2 Port SATA III PCI-e 2.0 x1 Card

Pros: UPDATE April 2017:
Please see Other Thoughts below.

Adds 2 extra SATA ports to your system at low cost.

Upgrades older SATA II systems from 280MB/s max. speed up to 380MB/s.

Cons: none at the price

Overall Review: UPDATE April 2017:
Some users experience problems so here are some tips.
1. There are so many different motherboards and chipsets - this card will work with most of them if you install it correctly.
2. Windows "generic" drivers often work best with this card instead of the maker's "Asmedia" drivers. So, always let Windows install drivers first and see if that works for you.
3. This card was designed back in the Windows 7 days. I have used it with Windows 7 and Windows 8.1 on motherboards made by ASUS, ASRock, Intel, and ECS. These were all with Intel cpus.
4. Make sure the card is fully seated / plugged into one of the very short PCI-e x1 slots (not the older, longer PCI slot).
5. Don't connect a drive immediately. Plug in the card and boot up the computer. Let Windows install generic drivers, then restart the computer. AFTER Windows has fully booted up check that the card appears in Device Manager and that there isn't a yellow exclamation mark beside it. This confirms that the card is properly installed and recognised by Windows. Then, shutdown the computer fully and connect a drive or drives to the SATA port(s) on the card.
6. If you are connecting a boot drive (a drive that has your operating system on it) you MUST go into the BIOS (or UEFI) IMMEDIATELY when you power on the computer. Usually, this is done by pressing the either F2 key or DELETE key. Check your motherboard user manual if in doubt. In the BIOS go to the BOOT tab or screen and make sure your boot drive is selected as the 1st drive or Primary drive. Then select Save and Exit in the BIOS menu (or hit F10 key). Failure to do this may cause Windows to not boot up, and may even corrupt the Master Boot Record (MBR).
7. This card has a single "lane" of bandwidth so your SSD maximum Sequential Read speed will top out somewhere around 380MB/s to 410MB/s depending on the motherboard. If you want faster speed, consider using a card rated as "x2" or higher. That means it has 2 lanes of bandwidth and can go faster. It also costs more. And, it plugs into an x4 slot or bigger because motherboards don't actually have x2 slots, OK? This point has been made clear before but some users still buy the card then complain of the speed limitation. Do your homework before you buy!
8. Some reviewers mentioned disappointing speeds of around 210MB/s or less. They mentioned motherboards such as Gigabyte GA-EP45-UD3R and ASUS P6T. Please note that these boards' PCI-e x1 slots are the old PCI-e rev.1.0 and are, therefore, only half the speed of PCI-e rev.2. (Many boards from that era have a PCI-e x16 slot which is PCI-e rev.2, but they cheap out on the x1 slots!) The rev.1 cuts the speed in half compared to rev.2.

An example of the faster cards would be SYBA SD-PEX40054 which is available here at Newegg and there are many others.

Don't forget to boot into BIOS after connecting a boot drive to this card and make sure it is selected as the "first boot device"; otherwise, Windows won't boot up!

Pros: It works, after an OS reinstall. If you have an old mobo and want a SSD along with AHCI and TRIM, this will work.

Cons: Don't expect 500 on the reads/writes for old mobo with 1st Gen PCIex. I get 225 with Samsung EVO. Good enough for basic nerding

Overall Review: None