I can't speak for their RAID cards, but the SCSI card in my old desktop
was flaky from day one. After numerous tech support equiries, driver &
firmware updates, it still bluescreens my computer occasionally.

I will never buy another Adaptec product.

I run the Adaptec SCSI card (160MB/s, the one with Windows driver "adpu160m")
for 8 years or so. No issues.

--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation

http://www.storagecraft.com