I haven't used one but know a little about them... It's just that Silicone Image is a cheaper brand who produce other oem hardware as well. Depending on your budget and requirements, I would only suggest this card if you're looking for a cheap solution and are in need now, while being willing to upgrade later, otherwise I would suggest a PROMISE Raid card or an Adaptec, which will run you a little less than the Promise withought compromising any quality.. I mean, unless you can simply upgrade your motherboard which is ideal.