The product is a lot of 17 PCI parallel, serial, and SCSI IO cards from the brand SIIG. These cards are wired and compatible with the PCI port. Included in the lot are various external interfaces such as serial cards, SCSI cards, and parallel cards, providing a range of options for expanding the capabilities of a computer's input/output system. This lot offers a diverse selection of cards to cater to various connectivity needs in a computer setup. Multiple brand and functionality see pics , I am not responsible for any incompatibility as there is NO Return, all were tested working when they were pulled out. A great deal for great cards