Features: brand new and high quality Quad-core 64-bit (Arm Cortex-A53@1GHz). 512MB LPDDR2 SDRAM Mini video output interface. Composite video interface pad, and resets interface pad. Onboards for RaspberryPi 40 Pin GPIO interface pad, suitable for RaspberryPi series expansion board. Light in weight, small in size, convenient for you to store and manage. Made of high-quality materials, exquisite workmanship, very good quality and long service. Specifications: Material:PCB Chip: BCM2710A1 CPU: 1 GHz quad-core, 64-bit ARM Cortex-A53 GPIO interface: 1x40Pin GPIO interface Video interface: vacant video interface (used to connect TV output video, which needs to be soldered by itself) Welding pin arrangement: none Size: Approx.65x30x5.2mm/2.56x1.18x0.2inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Development Board