Features: Add 4 RS-232 ports through USB Hassle free solution with 4 RS-232 serial ports Hot plug and play No additional I/O or IRQ required RS-232 speed up to 115.2 Kbps Supports USB 1.1, full rate speed up to 12 Mbps Built-in 16 KV ESD Surge Protection Supports Win98/ME/2000/XP drivers Supports both bus power and external power

Main Specifications
USB	Compliant with USB 1.1, 1.0, USB 2.0 backwards compatible Connector: USB type B Speed: Full speed 12 Mbps
Serial Interface	RS-232: TxD, RxD, RTS, CTS, DTR, DSR,GND Connector: DB9 Male FIFO: 128 bytes Serial line protection: 16 KV ESD for all signals
Serial Communication Parameters	Parity: None, Even, Odd Data bits: 7, 8 Stop bit: 1, 2 Flow control: RTS/CTS Speed: 600 to 115.2 Kbps
Power Requirements	Power Input: 12 to 48 VDC (external) or 5 VDC (Bus power) Power Consumption: BUS: 172 mA @ 5 VDC Ext. PWR: 117 mA @ 12 VDC
Mechanical Specifications	Material: ABS Gross Weight: 220±5g ( 0. 48 lb)
Environmental	Operating Temperature: 0 to 55°C (32 to 131°F) Storage Temperature: -20 to 85°C (-4 to 185°F) Operating Humidity: 5 to 95% RH
Agency Approvals	EMC: FCC (Class B), CE (Class B) Safety: UL, CUL, TÜV