Outside the box
As you might expect, the SN25P's exterior is similar to other P-series chassis. Shuttle mates the cube's deep charcoal body with a blue face plate and silver trim to lighten the mood, making for an attractive aesthetic that's still reserved enough for the office.
Like other P-series systems, the SN25P integrates a memory card reader right up front. The card reader consumes two of the chipset's USB ports, but given the popularity of digital cameras, those are ports well spent. Shuttle hides the rest of the system's front panel goodies under a series of drop-down doors.
With the touch of a finger, the doors swing down to reveal an external 3.5" drive bay and a front port cluster that includes audio, USB, and Firewire plugs.
Shuttle also hides the SN25P's 5.25" drive bay behind a stealthy door, keeping beige optical drives from scarring the system's otherwise attractive face. The spring-loaded door opens and closes automatically under the force of the optical drive tray. The chassis is also equipped with an adjustable external eject button that's compatible with a wide range of optical drives.
Moving to the side of the system, we catch a glimpse of the P-series' Prescott roots. This chassis was originally designed for toasty Prescott Pentium 4 processors, so the chassis has plenty of venting to provide adequate airflow through the system.
Holes even riddle the bottom of the case, allowing cool air to waft up under the motherboard.
Oddly, the SN25P's rear panel isn't as heavily-vented as the rest of the cube. In fact, the grills on the system's two 70mm exhaust fans look restrictive enough to impede airflow. The 80mm power supply exhaust fan's grill is more open, but it's tempting to break out a Dremel to trim some of the extra metal.
Below the fan grills, the SN25P bristles with peripheral ports. The system's extensive array of audio ports, which includes both RCA and TOS-Link digital S/PDIF outputs, is particularly impressive. Shuttle scores points for integrating a CMOS reset button right into the port cluster, saving overclockers and tweakers from having to crack the system open to clear the BIOS.