The Zotac Nano XS is a palm size PC. This can be used to build your own media center solution.

Size is 4 inches X 4 inches X 1.5 Inches and here is the rest of specifications.

Processor AMD E-450
(2 x 1.65 GHz Bobcat cores, 1 MB L2, 40nm, 18 W)
Chipset AMD A50M (Hudson-M1)
Memory 1 x 2 GB SO-DIMM Samsung DDR3-1333 (Maximum 1 x 4 GB) (1.6 GB Available to CPU)
Graphics AMD Radeon HD 6320
(80 Stream Processors, 508 MHz core clock (Turbo to 600 MHz), 384 MB Available to GPU)
Primary Drive(s) Kingston SSDNow mS100 SMS100S2/64G mSATA 64GB SATA II SSD
Networking 150 Mbps Realtek RTL8188CU Wireless LAN 802.11n USB 2.0 Network Adapter (Bundled)
Realtek PCIe Gigabit Ethernet
Audio Realtek 2-channel HD Audio
Optical SPDIF (with mini-SPDIF Adaptor)
Headphone and mic jacks
Front Side Power button
IR Receiver
MMC/SD/SDHC/MS/MS Pro/SDXC Card Reader
eSATA / USB 2.0 Combo Port
Headphone / optical SPDIF adaptor and mic jacks
Right Side Exhaust vent
Kensington lock
Left Side Exhaust vent
Rear Side AC Adaptor input
HDMI 1.4a compatible port
2 x USB 3.0
1 x GbE LAN
2 x USB 2.0