Comes with a USB cable & power supply (120 volt, 60 hz).

Features:

• Metal Case
• Optionally DIN-rail mountable with additional mounting kit.
• 4 RS422/485 ports
• Included external power supply

Specifications:

• Number of ports: 4
• Speed: Up to 921.6 Kbpz
• RS422/485 signals: RS422 TxD+/-, RxD+/-, RTS+/-, CTS+/-, GND RS485 Data+/-, GND
• Power: External power supply 5V DC required. Adapter included, 12V not possible.
• Drivers: Windows 98, ME, 2000, XP, 2003 Server, Vista & 7, Linux (Kernel 2.4 and up built-in)
• Connectors: 4 DB9 Male
• Dimensions: 167 x 99 x 29 mm (W×L×H)or 189 x 102 x 30 mm with DB9 connectors and ears.

Product includes USB-4COMi-M unit, USB cable of approximately 3 feet, Power Adapter, CD with drivers and documentation.

This type of power connector is used in the following countries: American Samoa, Anguilla, Antigua, Aruba, Bahamas, Bangladesh, Barbados, Bermuda, Bolivia, Brazil, Cambodia, Canada, Cayman Islands, China (without holes in blades and slightly shorter blades), Colombia, Costa Rica, Cuba, Ecuador, El Salvador, Guam, Guatemala, Guyana, Haiti, Honduras, Jamaica, Japan, Laos, Lebanon, Liberia, Maldives, Mexico, Micronesia, Montserrat, Netherlands Antilles, Nicaragua, Niger, Okinawa, Panama, Peru, Philippines, Puerto Rico, St. Vincent, Saudi Arabia, Tahiti, Taiwan, Thailand, United States, Venezuela, Vietnam, Virgin Islands (U.S.& British), Yemen.
Click here to view this type of power plug.

Lifetime toll-free technical support is available for this product at 1-800-274-7897 (USA & Canada only).

Product comes with a 1 year warrantee, and a 30-day money back guarantee with no restocking fee.