Adesso ADP-PU21 - PS/2 to USB Adapter, connects 2 PS/2 connectors to 1 USB port/hub,Black
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*Price sourced from Amazon.com. Last updated 2026-04-19. Price and availability subject to change.
Bottom line: The Adesso ADP-PU21 - PS/2 to USB Adapter, connects 2 PS/2 connectors to 1 USB port/hub,Black is a specs-and-price decision rather than a crowd-consensus one in the keyboards & mice category, priced around $12.18. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.
Pros & Cons
Pros
- ✓ Easy installation, no software driver needed
- ✓ Backed by Adesso's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
The Adesso ADP-PU21 USB to PS/2 adapter is the best solution for those who want to use legacy PS/2 devices on new USB systems. It allows you to connect a PS/2 mouse and keyboard through the USB port on any computer. Perfect for Notebook Laptop users.
SpecPicks Verdict
SpecPicks scored Adesso ADP-PU21 - PS/2 to USB Adapter, connects 2 PS/2 connectors to… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the keyboards & mice category. Adesso's keyboards & mice lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for keyboards & mice of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Key Features
- Easy installation, no software driver needed
- Use Existing PS/2 Input Devices on New USB Computers
- Connect Two PS/2 Input Devices to One USB (PC) Port
- Works With All Adesso Touchpad and Trackball Keyboards
- Compliant with USB 1.0/1.1 Revisions
- Supports both UHCI and OHCI specifications
Full Specifications
| Brand | Adesso |
|---|---|
| Color | Black |
| Finish | Black |
| Unit Count | 1 Count |
| Connectivity | USB |
| Model Number | ADP-PU21 |
| Compatibility | PC, Switch |
| Built-In Media | Computer Peripherals^Cables and Cable Adapters^USB Cables^ |
| Connector Type | PS |
| Item Dimensions | 2 x 1.5 x 0.5 inches |
| Mfr Part Number | ADP-PU21 |
| Number of Items | 1 |
| Number of Ports | 1 |
| Power Plug Type | No Plug |
| Compatible Devices | PC |
| Warranty Description | 1 year |
| Item dimensions L x W x H | 2 x 1.5 x 0.5 inches |
| Specific Uses For Product | personal |
| Global Trade Identification Number | 00783750000246, 00783750001601, 07837500016018 |
Ready to buy?
Adesso ADP-PU21 - PS/2 to USB Adapter, connects 2 PS/2 connectors to 1 USB port/hub,Black is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-04-19. Price and availability subject to change.
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