SA3234-C 4-Port PCIe X4 SATA Expansion Card with SATA and Power Cables, Compatible with Windows,Linux,Mac OS,NAS

Worked out of the box on Linux system even when bought as a "Used" item. Displays all 6 Drives as list along with other Drives connected to normal Sata connection, so Computer shows list of 9 Drives to open, transfer between etc. Transfers files as fast as rest of normal computer Sata system so nothing to complain about. Only bought as experiment to try and save lots of cable unpluging, so far a good investment. Don't work it hard and only installed for few weeks so can't comment on anything beyond that but only time will tell for reliability. so far money well spent to make life easier.

Seems fine, just plugged it in and it just worked, individual drive speeds seem to be about right, probably wouldn't try doing anything fancy with it like software RAID, but for adding a few slots for removable drives and maybe an optical drive it seems fine, if I wanted to do proper server stuff like hardware RAID, I'd spend more money, this isn't up to that.

Easy conversion of pci to Sata. Espyif you need extra connections

Bought for use in my TrueNas server, This is now 1 of 2 Sata cards I have in it, 2 different controllers with 4 drives on each. No issues what so ever.