PNY Quadro NVS 420 Graphics Card Form Factor - SFF (Small Form Factor) profile, 2.731 H x 6.6 L Memory Size - 512MB GDDR3 (256MB per GPU) Memory Interface - 128-bit (64-bit per GPU) Memory Bandwidth 22.4GB/sec (11.2GB/Sec per GPU) Max Power Consumption - 40W