HTC ExtUSB pinout HTC ExtUSB is 11-pin USB connector used on older HTC phones. It is a single port to handle Audio, USB Sync, and Power Compatible with mini-usb connector.
HTC 3.5mm headset pinout should work with HTC HD2, 7 Trophy / Spark, Aria, Arrive, AT&T Desire, Desire (CDMA), Droid Eris, DROID Incredible 2, Droid Incredible ADR6300 , EVO 4G, EVO Shift 4G, Freestyle, Google Nexus One GSM, HD7, Hero GSM, Imagio / XV6975, Inspire 4G, Merge, Mytouch 3G 1.2, myTouch 3G Fender, myTouch 3G Slide, myTouch 4G, Sprint / Alltel Hero - CDMA, Sprint / Verizon Touch Pro 2 XV6875, Surround, Thunderbolt, T-Mobile G2, T-Mobile HD2, Touch HD, Verizon Bee / Alltel Wildfire, Verizon / Sprint Nexus One CDMA, Wildfire GSM 3.5mm headphone jack
HTC Corporation is a Taiwanese consumer electronics company headquartered in Taiwan. Founded in 1997, HTC began as an original design manufacturer and original equipment manufacturer, designing and manufacturing devices such as mobile phones and tablets.