→No 
				External Power Supply required
				→Fully Compliant with the USB 1.1/2.0 (High Speed)
				→3000 VDC Isolation Protection on the RS-485 side
				→ESD Protection for the RS-485 & USB Data Line
				→Automatic RS-485 Direction Control
				→Driver Supports Windows XP / Vista (32/64-bit) / Windows 7 
				(32/64-bit) / Linux / Mac