VeriFone M281-503-02-R Model Vx 810 Contactless PIN Pad, 200 MHz ARM9 32-bit RISC processor, 6 Mbytes (4 MB of Flash, 2 MB of SRAM) Memory, Smart Card, 3 Security Access Modules SAM Card Reader, 128 x 64 pixel graphical LCD with backlighting, supports 16 lines x 21 characters (M28150302R M281-50302-R M281-503-02 M281-503 M281503 VX-810 VX810)