The XPC SG33G50 has two 240 pin DDR2 DIMM slots which accommodate up to 4GB of DDR2-400/667/800 memory in a dual channel configuration. The drive cage sit directly above the memory slots, so tall memory like Corsair's DOMINATOR line will not fit.

The floppy drive is basically is dead, but if you're still clinging to yours Shuttle do include a header for one. The floppy cable is not installed into the system by default, you'll have to route that yourself. It can be quite tight so use some patience during installation. The drive cage is nothing but a single piece of shaped aluminum. There are various holes for mounting floppy, hard disks and optical drives. At the bottom is a transparent piece of plastic which acts as a cable catch and helps keep cables off of the northbridge heatsink.

The heatsink which is included with the Shuttle SG33G50 SFF system is a custom thermal solution. A large, but very thin copper heatspreader makes contact with three heatpipes which conduct the heat to an array of aluminum cooling fins at the rear of the system. The heatsink is held to the chassis via four spring-tensioned screws.

The 92mm PWM fan is housed inside an aluminum shroud which directs all the hot air from within the XPC SG33G50 system through the fins of the heatsink and out the back. There are rubber washers sandwiched between the shroud and the chassis to reduce vibration and noise.

The Shuttle XPC SG33G50 supports DTS connect HDMI.