Things are definitely busy at the rear of the Shuttle XPC SN27P2 case.
Starting from the left, we find the PCI Express x16 and PCI expansion slots, and
the little button there is a Clear CMOS button (handy if you tend to do a lot of
There are a total of six USB 2.0 slots
along with an IEEE 1394a Firewire and a eSATA jack. You'll also find a Gigabit
Ethernet network jack, and various audio jacks from SPDIF to digital output
along with the traditional audio ports. At the top of the chassis are spaced for
a few extra items, non of which come standard with this particular model.
Above the power supply the are two 70mm exhaust fans set
to blow through some rather poorly thought-out cooling vents in the aluminum
The fans are mounted right up against the aluminum
sheet metal without any space for a plenum, and the vent holes are about as
small as you can possibly get. It's really tempting to just cut this section of
the chassis right out, and replace it with a couple wire grills... if there
is anything to criticize about the Shuttle XPC SN27P2 it's this spot. On the
inside, we at least find the cooling fans are properly shielded from stray wires
which might gum them up.