Nothing on the back side?
Looks like a LSI SAS 1068, probably from a HP server.
Looks like a LSI SAS 1068, probably from a HP server.
also has similar dell perc5/6 probably a reference card..
also google intel D23589-306 sas
says it on the controller chip, LSI SAS 1068
http://www.esaitech.com/dell-lsisas...paign=ga-pla&gclid=CIev-c_6wbsCFa9lOgod2kcAkw
Yes, PCI-E is downward compatible. in other words, a smaller connector will work in a bigger slot...but not the other way around. This is also dependent on the motherboard you're installing it in.
I put the card in PCI ex 16x slot. But I doesn't detect.