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Adesso ADP-PU21 - PS/2 to USB Adapter, connects 2 PS/2 connectors to 1 USB… competes with other Keyboards & Mice products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full Keyboards & Mice category for alternatives.

Adesso

Adesso ADP-PU21 - PS/2 to USB Adapter, connects 2 PS/2 connectors to 1 USB port/hub,Black

Name: Adesso ADP-PU21 - PS/2 to USB Adapter, connects 2 PS/2 connectors to 1 USB port/hub,Black
Brand: Adesso
SKU: B00008ZPED
Price: 12.18 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-08

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$12.18

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🛒 See live eBay price Also on Amazon → Compare to similar keyboards & mice

*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 niche pick — read recent reviews before buying in the keyboards & mice category, priced around $12.18. Compare close alternatives before committing.

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. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

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.

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

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.

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*Price sourced from Amazon.com. Last updated 2026-04-19. Price and availability subject to change.