This is a PCIe 3.0 card with x8 bus. It is overspeced for most anything you'd need to use it for, but it is new (as opposed to used on eBay). $99 for a new 8 port card is a very good price   https://www.newegg.com/Product/Product.aspx?Item=9SIAD5G5JG6318&ignorebbr=1   I like the PCIe 2.0 version, the LSI SAS9201-8i,, and it works just as well for most people. They are closer to $50 on eBay. I have the -16i and -16e versions of this card and can attest they are excellent a