The naming convention for Supermicro products is never easy at the best of times but I think that you may have some pictures, model numbers and details mixed up here...

According to the SM web site the 5046A-XB server http://www.supermicro.com/products/system/tower/5046/SYS-5046A-X.cfm is a full tower with 6 SATA ports, onboard raid and 24GB of memory.

I think the 4 SATA port model you are referring to is possibly the 5036T-TB http://www.supermicro.com/products/system/midtower/5036/SYS-5036T-T.cfm which is a mid-tower, 4 SATA port but does include RAID as well.

The 5035L-iB http://www.supermicro.com/products/system/tower/5035/SYS-5035L-I.cfm looks like a pretty low end server to me and not much of a big brother to anything.

As I say the SM model numbers are quite confusing and these may be new products but the Web site seems to have different details....!

Must say the 5046A-XB looks like a nice home server or virtualisation platform. It's only single processor but with a quad core i7 920 and SMT (Hyperthreading) that's 8 cores.

Cheers, GMA