The G-Series debuted with the SS40G, which was designed for Socket 462 Athlon processors and limited to PCI expansion, just 1GB of memory, and analog audio and video outputs. Of course, the systems built around this chassis have progressed by leaps and bounds over the last five years. Shuttle’s been a little less restrained with its treatment of the G-Series exterior, which has been adorned with everything from brushed metal to tinted transparent plastic. Apart from a nip here and a tuck there, plus a gentle massaging of the cooling system, the layout and overall design hasn’t changed much in five years�at least on the inside. The G-series was Shuttle’s first really slick XPC, and it quickly became the basis for a slew of models that ultimately popularized small form factor barebones systems. For the rest of the market, Shuttle leans on various flavors of its slightly smaller G-series chassis, a design that’s been around for an astounding five years. Power-hungry enthusiasts will be most interested in the XPC SD39P2 and SN27P2, both of which are based on a P-Series cube that packs a beefy power supply and can easily accommodate double-wide graphics cards and a couple of hard drives. O VER THE YEARS, Shuttle’s XPC lineup has been whittled down from a vast array of small form factor barebones systems based on wildly different form factors to a handful of models built on only a couple of chassis.
