Features ($192 ):

• Tegra K1 SOC
  • Kepler GPU with 192 CUDA cores
  • 4-Plus-1 quad-core ARM Cortex A15 CPU
• 2 GB x16 memory with 64 bit width
• 16 GB 4.51 eMMC memory
• 1 Half mini-PCIE slot
• 1 Full size SD/MMC connector
• 1 Full-size HDMI port
• 1 USB 2.0 port, micro AB
• 1 USB 3.0 port, A
• 1 RS232 serial port
• 1 ALC5639 Realtek Audio codec with Mic in and Line out
• 1 RTL8111GS Realtek GigE LAN
• 1 SATA data port
• SPI 4MByte boot flash

Dr. Dobbs has an in depth look here.