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.
Technical details
Product colour
Black, Silver
Rack mounting
No
Plug and Play
Yes
Push button
Yes
LED indicators
Yes
USB version
2.0
Ports & interfaces
Console USB ports quantity
4
Console ports
USB B
USB version
2.0
USB connector type
USB Type-A, USB Type-B
Number of computers controlled
4
Keyboard port type
No
Mouse port type
No
Console port
USB
USB 2.0 Type-B ports quantity
4
Performance
Data transfer rate (max)
0.48 Gbit/s
Plug and Play
Yes
Design
Product colour
Black, Silver
Rack mounting
No
Push button
Yes
LED indicators
Yes
Housing material
Plastic
Display
Built-in display
No
Power
USB powered
Yes
Operational conditions
Operating temperature (T-T)
5 - 40 °C
Storage temperature (T-T)
-20 - 60 °C
Operating relative humidity (H-H)
0 - 80%
Weight & dimensions
Width
79.6 mm
Depth
104 mm
Height
22 mm
Weight
97 g
Logistics data
Quantity per pack
1 pc(s)
Other features
Push button
Yes
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US421A