This computer has ONE IDE cable (for the CDROM) and ONE SATA cable (for the HDD). If you plan on moving an old hard drive to the new computer (like I did) you might have some trouble. Make sure your old drive is a SATA drive. Also, the case is very small and normal, full height, PCI cards won't fit. You'll need short stubby ones - even then, though, the metal brackets may still be too tall. I had to remove the brackets on my PCI wireless card and stick it in the PCI slot with no screw.So, if you buy this as a brand new computer an don't place to migrate an old system to it, it's great. Otherwise, it's a bit tedious.