# PS/2-to-USB adapter > adapter to connect a PS/2 mouse/keyboard to a USB-A port **Wikidata**: [Q135916531](https://www.wikidata.org/wiki/Q135916531) **Source**: https://4ort.xyz/entity/ps-2-to-usb-adapter ## Summary A PS/2-to-USB adapter is a hardware device that enables users to connect older PS/2 format mice and keyboards to modern computers equipped with USB-A ports. This adapter serves as a bridge between the two incompatible connector types, extending the usability of legacy input devices without requiring replacement. ## Key Facts - The PS/2-to-USB adapter converts PS/2 mouse/keyboard signals to USB-A port standards. - It uses a PS/2 connector on one end and a USB Standard-A plug on the other end. - The adapter belongs to the broader class of USB-PS/2 adapters, which convert between USB and PS/2 protocols. - It is sometimes referred to by alternative names including PS/2-USB adapter and USB-PS/2 adapter. - The PS/2-to-USB adapter is conceptually opposite of a USB-to-PS/2 adapter based on connector gender. - It is a subclass of the USB-PS/2 adapter category. ## FAQs ### Q: What is the purpose of a PS/2-to-USB adapter? A: A PS/2-to-USB adapter allows users to connect older PS/2 mice and keyboards to modern computers that only have USB-A ports. This enables continued use of legacy input devices without requiring compatible hardware. ### Q: Will all PS/2 keyboards and mice work with a PS/2-to-USB adapter? A: Most standard PS/2 keyboards and mice are compatible with PS/2-to-USB adapters. However, some specialty keyboards with advanced features or gaming mice with high polling rates may not function optimally or may require specific driver support. ### Q: Can I use a PS/2-to-USB adapter with USB-C ports? A: No, a PS/2-to-USB adapter is specifically designed with a USB Standard-A plug. It cannot be directly connected to USB-C ports without an additional USB-A to USB-C adapter. ### Q: Do I need to install special drivers for a PS/2-to-USB adapter? A: In most modern operating systems including Windows, macOS, and Linux, PS/2-to-USB adapters work without requiring special drivers as the OS recognizes them as standard HID (Human Interface Device) compatible devices. ## Why It Matters PS/2-to-USB adapters represent an important solution to the problem of electronic device compatibility across evolving technology standards. As computers transitioned from PS/2 to USB as the primary input interface, these adapters allowed users to preserve their investment in quality PS/2 keyboards and mice without requiring replacement. They serve as a bridge between generations of technology, preventing electronic waste and maintaining functionality for users with accessibility needs who may prefer older keyboard designs. These adapters exemplify how peripheral compatibility solutions can extend the useful life of hardware, reduce consumer costs, and promote sustainability in technology ecosystems. ## Notable For - Being a simple yet effective solution to connect legacy PS/2 devices to modern USB-A ports without requiring replacement of functional input hardware - Its role in extending the useful life of older keyboards and mice despite changes in standard computer interfaces - Providing an affordable alternative to purchasing new USB-compatible devices when only PS/2 peripherals are available - Operating typically without requiring additional drivers in modern operating systems, offering "plug-and-play" functionality ## Body ### Physical Design The PS/2-to-USB adapter is a small, typically rectangular hardware device that serves as a bridge between two different connector types. One end features a PS/2 connector (either the 6-pin DIN for keyboards or the smaller 6-pin mini-DIN for mice), while the other end terminates in a USB Standard-A plug. The device is usually housed in durable plastic casing and may include LED indicators for power or activity. ### Functionality The adapter converts PS/2 protocol signals to USB protocol signals, allowing communication between legacy PS/2 input devices and modern USB-enabled computers. It typically contains a small microcontroller that handles the translation between the two communication protocols. Most adapters are bidirectional in nature but are specifically designed for converting PS/2 devices to USB connections. ### Compatibility Standard PS/2-to-USB adapters work with most basic PS/2 keyboards and mice. However, certain specialized keyboards with advanced features may not function optimally, as the adapter cannot replicate all functionality that might be dependent on native PS/2 hardware support. Modern operating systems generally recognize these adapters as standard HID devices without requiring additional driver installation. ### Technical Specifications While specific dimensions vary between manufacturers, PS/2-to-USB adapters are typically small enough to be portable and unobtrusive when connected. They draw minimal power from the USB port and do not require external power sources. Most adapters support full USB 1.1 specifications or higher, providing adequate bandwidth for keyboard and mouse input devices.