3.5 inch SATA HDD player with USB 3.0, VGA/SD/MMC Card reader/HOST Function ... capacitive touch key. 3) Mobile HDD: USB2.0 interface enables it as a USB mobile HDD with SATA HDD installed ... PC USB port, no external power supply needed. Compatible with both Windows and MAC OS . 4) USB HOST: ... Crosstalk: > 80dB (1 kHz 0dB) 18) Support Devices: 3.5”SATA HDD (no capacity limitation), USB3.0, USB storage, SD ...