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The US421A is a 4-port USB 2.0 Peripheral Switch that allows up to 4 computers to share the use of a single USB peripheral device (such as a printer, scanner, mass storage drive, etc.) on a one-at-a-time basis.

The peripheral focus can be given to a computer manually by using pushbuttons on the switch, using the software-based configuration utility, or by the Auto Switch function.

Compatible with both Windows and Mac, and with multifunction printer support, the US421A is the ideal way to share the latest USB 2.0 peripherals in a multimedia office environment.

Enables four computers to share a single USB peripheral device

Simple port selection via pushbuttons, configuration utility, or Auto Switch function

Auto Switch Function - no need for print server

USB 2.0 compliant

Supports transfer rates up to 480 Mbps

Multiplatform support - Windows and Mac

LED indicators display port focus

Overcurrent protection


Hot pluggable

Buzzer indicates switching between computers

Supports multifunction printers

Package Contents

1x 4-Port USB 2.0 Peripheral Switch

1x USB Type A to USB Type B Cable(1.8m)

1x Installation disk

1x User Instructions

Product Details

GroupName Name Value
Specifications Compatible Size N/A
Connectors Computer 4 x USB Type B
Specifications Console Connections 4
Connectors Device 1 x USB Type A
LEDs Devices 1 (Orange)
Physical Properties Dimensions (L x W x H) 10.40 x 7.96 x 2.20 cm (4.09 x 3.13 x 0.87 in.)
Physical Properties Housing Plastic
Environmental Humidity 080% RH, Non-condensing
Environmental Operating Temperature 040°C
Specifications Port Selection Pushbuttons, Software, Auto Switch
Specifications Power USB Bus Powered
Specifications Product Type 4 port USB sharing device
LEDs Selected 4 (Green)
Environmental Storage Temperature -2060°C
Specifications Switches 4 x Pushbutton
Specifications Warranty 2 Years
Physical Properties Weight 0.10 kg ( 0.22 lb )

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