Shipping Information
- Available for shipping
- Usually leaves our partner warehouse in 2-4 business days
Store Availability
- 3-5 business days at Bankstown Store
- 3-5 business days at Castle Hill Store
- 2-4 business days at Northmead Store
Shipping Estimate
Overview
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.
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
Features
- 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
- Bus-powered
- Hot pluggable
- Buzzer indicates switching between computers
- Supports multifunction printers
Diagram

Specifications
4-Port USB 2.0 Peripheral Switch
| Console Connections | 4 |
| Port Selection | Pushbuttons, Software, Auto Switch |
| Connectors | |
| Computer | 4 x USB Type B |
| Device | 1 x USB Type A |
| LEDs | |
| Devices | 1 (Orange) |
| Selected | 4 (Green) |
| Switches | 4 x Pushbutton |
| Power | USB Bus Powered |
| Environmental | |
| Operating Temperature | 0–40˚C |
| Storage Temperature | -20–60˚C |
| Humidity | 0–80% RH, Non-condensing |
| Physical Properties | |
| Housing | Plastic |
| Weight | 0.10 kg ( 0.22 lb ) |
| Dimensions (L x W x H) | 10.40 x 7.96 x 2.20 cm (4.09 x 3.13 x 0.87 in.) |
| Note | For some of rack mount products, please note that the standard physical dimensions of WxDxH are expressed using a LxWxH format. |
| Ports & interfaces | |
| Number of computers controlled The amount of computers controlled by this device. | 4 |
| Keyboard port type The type of socket in the device for connecting a keyboard e.g. USB. | USB |
| Mouse port type | USB |
| Audio connections Cables used to connect audio inputs or audio outputs to another device e.g, audio amplifier. |
|
| Design | |
| Rack mounting The type of mounting that can position devices in a shelving system (rack). |
|
| Cable length How long the cable is. | 1.8 m |
| RoHS compliance The Restriction of Hazardous Substances (RoHS) Directive aims to restrict certain dangerous substances commonly used in electrical and electronic equipment. Any RoHS compliant product is tested for the presence of Lead (Pb), Cadmium (Cd), Mercury (Hg), Hexavalent chromium (Hex-Cr), Polybrominated biphenyls (PBB), and Polybrominated diphenyl ethers (PBDE). PBB and PBDE are flame retardants used in several plastics. For Cadmium and Hexavalent chromium, there must be less than 0.01% of the substance by weight at raw homogeneous materials level. For Lead, PBB, and PBDE, there must be no more than 0.1% of the material, when calculated by weight at raw homogeneous materials. Any RoHS compliant component must have 100 ppm or less of mercury and the mercury must not have been intentionally added to the component. In the EU, some military and medical equipment are exempt from RoHS compliance. |
|
| Display | |
| Built-in display A display which is part of the product, so you do not need to attach another display. |
|
| Operational conditions | |
| Operating temperature (T-T) The minimum and maximum temperatures at which the product can be safely operated. | 5 - 40 °C |
| Storage temperature (T-T) The minimum and maximum temperatures at which the product can be safely stored. | -20 - 60 °C |
| Operating relative humidity (H-H) | 0 - 80% |
| Weight & dimensions | |
| Width The measurement or extent of something from side to side. | 76 mm |
| Depth The distance from the front to the back of something. | 102 mm |
| Height The measurement of the product from head to foot or from base to top. | 23 mm |
| Weight Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies. | 97 g |
| Packaging content | |
| Cables included | USB |
| Manual |
|
| Other features | |
| Connectivity technology The technology that enables connectivity of the device, e.g. wired or wireless. | Wired |
| I/O ports An interface on a device to which you can connect another device. | 4 x USB Type B Out 1 x USB Type A In |
| SKU | 318619 |
| MPN | US421A-AT |
| Brand | ATEN |
| Product Condition | Brand New/Unused |
| Stock Availability | Available for Shipping |
| Warranty Period | 2 Years Warranty |
| Warranty Contact | https://www.aten.com/ |