HP 761971-001 - I/O board - Includes cable, ribbon cable, audio jack, two USB 2.0 ports, and micro-USB charging jack Retail
HP 766607-001 - Keyboard base I/O board - Includes two connector cables, audio-in/audio-out jack, DisplayPort, docking connector, power connector, Retail
HP 785884-001 - SIM connector board - Includes connector cable, SD card reader slot, and SIM slot - For use on models equipped with WWAN Retail
HP 382677-001 - Audio board - Includes line-in (microphone) and line-out (headphone) jacks - Does NOT include connector cable Retail