Tag: keyboard

24 matching upgrades

Showing 24 products.

StatusProductWhat it doesCompatibilityLinks
Sold outChecked Jul 14, 2026ADB-USB Wombatby Big Mess o' Wires

Bidirectionally converts keyboards and mice between Apple's ADB interface and modern USB HID.

The BMOW store showed the Wombat as sold out on 2026-07-14. Check the direct product page for a restock.

Sources
  • Macintosh SE/30 Bus/interface
AvailableChecked Jul 24, 2026Apple IIc Low-Profile Keyboard Stiffenerby Elmars Ositis

Restores spring-clip keyboard support while leaving clearance for internal Apple IIc expansion boards.

JCM showed 39 units in stock on 2026-07-24. It is intended for the Apple IIc spring-clip keyboard. Some case revisions require trimming plastic screw bosses, so inspect the exact case before installation.

Sources
  • Apple IIc Exact model
AvailableChecked Jul 25, 2026Atarimax/ABBUC USB Cartridgeby ABBUC e.V. and Atarimax

Adds a two-port USB host interface for supported keyboards, controllers, mice, and other driver-backed devices.

Atarimax marked the cartridge in stock and ready for shipment on 2026-07-25, although the same page called the current price a preorder promotion through 2026-07-31. This is not a generic plug-and-play USB port: support depends on Atari-side drivers. Atarimax still describes the software as early beta, and the MicroUSB project's substantive status notes are historical, so check the device matrix and exact driver before buying hardware for a particular peripheral.

Sources
  • Atari 600XL Stated family
  • Atari 800XL Stated family
  • Atari 1200XL Stated family
AvailableChecked Jul 30, 2026C=Key Keyboard Adapterby RETRO Innovations

Uses a PS/2 keyboard on supported Commodore computers or converts their original keyboards and optional joysticks for a PS/2-equipped host.

The RETRO Innovations store exposed a configuration selector and Add to Cart path on 2026-07-30, with the bare PCB listed at USD 6 and configured kits priced separately. Kits and assembled units are made after ordering and normally take four to five weeks. The maker explicitly treats C=Key as a project rather than a fully supported product because its firmware is not extensively tested or easily upgraded; an AVR programmer is strongly recommended. Use a true PS/2 keyboard because passive USB adapters may not work.

Sources
  • Commodore VIC-20 Exact model
  • Commodore 64 Exact model
  • Commodore SX-64 Exact model
  • Commodore 128 Exact model
  • Vintage input adapters Bus/interface
Build itChecked Jul 30, 2026C128D Keyboard Booster for C64by Marc-Jano Knopp

Adds a buffered external C128D keyboard connection to a Commodore 64 while retaining the original keyboard.

The surviving workshop page provides a schematic, pin map, parts list, and verified build instructions, but no PCB files, kit, or explicit reuse license. It warns that a direct long-cable connection can overload and destroy the C64 CIA. The buffered design was intended for cables as long as 10 meters, although its troubleshooting section still recommends shortening a troublesome cable to about one meter.

Sources
  • Commodore 64 Exact model
AvailableChecked Jul 30, 2026C128D Keyboard to C64 Adapterby Protovision

Lets a detachable Commodore 128D keyboard serve as the keyboard for a Commodore 64.

Protovision listed 17 units from EUR 15 with a one- to two-week shipping estimate on 2026-07-30. Its news page says versions are available with or without an extension cable. Human review found no visible active components or additional documentation, but that does not prove the board is unbuffered. Ask the seller about buffering and safe cable length before using a long cable, and connect or disconnect the adapter only while the computer is powered off.

Sources
  • Commodore 64 Exact model
Build itChecked Jul 25, 2026Commodore User-Port USB Interfaceby Andre Fachat

Adds experimental USB host and device hardware through Commodore user and cassette ports.

Revision 1.0A is marked okay but was tested only on a PET. Revision 1.1A adds separately regulated, switchable USB host power but is explicitly untested. The interface uses both the user port and cassette port; PET ROM interrupt handling can switch cassette-motor-controlled USB power off unless software works around it. usb65 describes preliminary keyboard mapping, limited features, broken MAX3421 hub enumeration, and only partly working device mode. USB mass storage and networking are future plans, not supported features.

Sources
  • Commodore PET series Stated family
  • Commodore 64 Exact model
  • Commodore VIC-20 Exact model
  • Commodore 128 Exact model
AvailableChecked Jul 27, 2026DivMMC-USBby Lotharek

Combines DivMMC microSD storage, USB HID input, four ROM slots, snapshot storage, dual-AY audio, and DAC modes in one ZX expansion interface.

The seller exposed a login-or-register-to-buy path on 2026-07-27. Its published testing covers the original 48K, original 128K, Pentagon, and KRAKEN. The page says +2A and +2B compatibility still has known issues and that keyboard-mapped USB input will not work on +2A or +3 because of data-bus coupling; those models are not attached. Treat the described resistor workaround as experimental, not an installation recommendation. Follow the separate FPGA and USB-controller update procedures exactly.

Sources
  • Sinclair ZX Spectrum 48K Exact model
  • Sinclair ZX Spectrum 128K Exact model
  • Lotharek KRAKEN Exact model
  • ZX Spectrum expansion-bus hardware Bus/interface
AvailableChecked Jul 24, 2026JCM Universal Keyboard Encoderby Joe's Computer Museum

Replaces the General Instrument AY-5-3600-PRO keyboard encoder in several Apple computers.

The current page offered jumper and socket selections on 2026-07-24. Original Apple II and II Plus support applies to non-Datanetics keyboards; Datanetics keyboards use the separate MM5740AAE replacement.

Sources
  • Apple II Exact model
  • Apple II Plus Exact model
  • Apple IIe Exact model
  • Apple IIc Exact model
  • Apple IIc Plus Bus/interface
  • Apple III Exact model
  • Apple III Plus Exact model
Sold outChecked Jul 27, 2026Jupiter II Kitby A2Heaven

Recreates the Jupiter Ace as a complete soldering kit with revised video, reset, keyboard, and expansion hardware.

A2Heaven marked the kit out of stock on 2026-07-27. The historical package included the three PCBs, active and passive components, pre-mounted SMD parts, placement and schematic diagrams, documentation, and source material. No separate public fabrication download or current alternative seller was verified.

Sources
  • Jupiter II compatible system Exact model
AvailableChecked Jul 27, 2026JUST_POKEYby Lotharek

Replaces a failed or missing Atari POKEY with an updateable FPGA module in the original DIP-40 socket.

The product exposed a login-or-register-to-buy path on 2026-07-27. Installation is solderless only when the computer already has a compatible DIP-40 POKEY socket. This is a functional FPGA replacement, not a transistor-level NMOS clone; the seller warns that software depending on undocumented analog behavior or exact electrical characteristics may behave differently. The built-in USB port allows future firmware updates.

Sources
  • Atari 400 Exact model
  • Atari 800 Exact model
  • Atari 600XL Exact model
  • Atari 800XL Exact model
  • Atari 1200XL Stated family
AvailableChecked Jul 30, 2026Keyman64by Henning Bekel

Intercepts the C64 keyboard matrix to add programmable shortcuts, macros, remapping, remote control, and sixteen hardware-control lines.

The maker currently offers revision 4 assembly kits with a PCB, preprogrammed ATmega, and components except connection cables for EUR 30 by email. Kits are made in small spare-time batches and may require prepaid backordering. Version 1.6 firmware, configuration tools, Gerbers, KiCad design files, schematics, and source remain downloadable.

Sources
  • Commodore 64 Exact model
  • Commodore SX-64 Exact model
AvailableChecked Jul 15, 2026Keyrah V3by Individual Computers

Turns supported classic-computer keyboards, digital joysticks, and analog paddles into USB HID input devices for a modern PC, Mac, or Raspberry Pi.

The maker's store listed Keyrah V3 for immediate delivery on 2026-07-15. The box includes the circuit board and printed manual but no USB cable. Individual Computers has stopped ordinary shipments to the United States; its stated exception requires a forwarding service and wire-transfer payment, so US buyers should also check the official reseller list.

Sources
  • Vintage input adapters Bus/interface
AvailableChecked Jul 27, 2026Lotharek AKI Keyboard Interface Familyby DarkDK, Andre Bertram, and Lotharek

Adds an internal PS/2 or USB keyboard interface to supported Atari 8-bit computers by interposing at the POKEY socket.

Both variants exposed login-or-register-to-buy paths on 2026-07-27. A non-socketed POKEY must be desoldered, four control wires are required, and installation calls for a new case opening for the supplied keyboard socket or cable. The PS/2 page says an original keyboard that stops working on a 600XL or 800XL requires removal of R2 and R3; XE and XEGS machines leave those resistors intact.

Sources
  • Atari 600XL Exact model
  • Atari 800XL Exact model
AvailableChecked Jul 30, 2026MechBoard64by MtnBuffalo and AmericanRetro.shop

Replaces a Commodore 64 keyboard with a modern Gateron-switch mechanical assembly in breadbin or C64C cases.

AmericanRetro.shop offered assembled and kit versions, and its Tindie assembled listing showed two revision 1.07 units at USD 194.99 on 2026-07-30. MtnBuffalo also publishes revision 1.07 fabrication, bracket, firmware, bill-of-materials, and assembly files. The physical product and MechBoard64 brand require separate permission for commercial manufacture even though the published design files permit personal building and modification.

Sources
  • Commodore 64 Exact model
  • BMC64 PCB System Exact model
AvailableChecked Jul 24, 2026MM5740AAE Replacement Keyboard Encoderby Joe's Computer Museum

Replaces the National Semiconductor MM5740AAE/N encoder used by Datanetics-style Apple II keyboards.

The current page offered socket selections on 2026-07-24. This version is specifically for systems using the MM5740AAE/N and a Datanetics-style keyboard; non-Datanetics Apple II keyboards use JCM's AY-5-3600-PRO replacement instead.

Sources
  • Apple-1 Bus/interface
  • Apple II Exact model
  • Apple II Plus Exact model
Build itChecked Jul 30, 2026PET-N Mechanical Keyboard Projectby Andre Fachat

Provides source files for a Cherry-compatible Commodore PET N-type keyboard with printable supports and keycaps.

The repository was actively updated in June 2026 and supplies PCB, firmware, support, test, and keycap files. It is an advanced source build rather than a complete retail kit. The maker built it principally for the Micro-PET and Ulti-PET family and explicitly says installation in an original PET is possible in principle but untested.

Sources
  • Micro-PET Exact model
  • Ulti-PET Exact model
  • Commodore PET series Stated family
AvailableChecked Jul 30, 2026Petskey v1.0by TexElec

Provides a Cherry MX replacement-keyboard PCB for a graphics-keyboard Commodore PET or Tynemouth Mini PET.

TexElec listed the bare PCB set in stock for USD 27.99 on 2026-07-30. Switches, keycaps, electronic parts, cable, support structure, insulation, and the custom mounting work required by an original PET are not included. The optional Shift Lock circuit needs a safe 5 V connection inside the PET.

Sources
  • Commodore PET series Stated family
AvailableChecked Jul 25, 2026PS/2-to-XT Keyboard Converter Familyby Chuck(G), Sergey Kiselev, and Retro Electronics

Converts compatible PS/2 or AT keyboards for IBM PC and XT keyboard ports.

Retro Electronics listed one assembled converter in stock on 2026-07-25, and the open version remains available as build files. A USB keyboard works only if it implements the PS/2 or AT protocol and can use a passive USB-to-PS/2 adapter.

Sources
  • IBM Personal Computer 5150 Exact model
  • IBM Personal Computer XT 5160 Exact model
AvailableChecked Jul 24, 2026QuokkADB and HIDHopper ADBby Rabbit Hole Computing and Tech by Androda

Connects modern USB HID keyboards and mice to Macintosh computers through Apple Desktop Bus.

HIDHopper Base, Base with USB Hub Hat, and Hub Hat-only selections could be added to the JCM cart on 2026-07-24. The assembled QuokkADB Rev. 2022g remained sold out, while its Raspberry Pi Pico Community Edition remained buildable. HIDHopper's Hub Hat requires external USB-C power, must be power-cycled between Macintosh starts, and can otherwise exceed the host's ADB power budget.

Sources
  • Macintosh SE Bus/interface
  • Macintosh SE/30 Bus/interface
  • Macintosh Classic Bus/interface
  • Macintosh IIsi Bus/interface
  • Macintosh IIfx Bus/interface
  • Macintosh Portable Exact model
  • Power Macintosh G3 Minitower Stated family
  • Macintosh ADB Bus/interface
AvailableChecked Jul 24, 2026QuokkaNeXT HIDby Rabbit Hole Computing

Connects modern USB keyboards and mice to the five-pin non-ADB NeXT input interface.

Rabbit Hole Computing's current all-products collection listed the assembled adapter without a sold-out marker on 2026-07-24. The GPL-licensed firmware and UF2 update path are public. The adapter requires a NeXT Soundbox or monitor with the five-pin non-ADB input path.

Sources
  • NeXTstation Bus/interface
DiscontinuedChecked Jul 30, 2026Tynemouth PET Replacement Keyboardby Tynemouth Software

Replaces a Commodore PET 2001 or graphics-style PET keyboard with a compact modern tactile-switch assembly.

The maker now marks the 2018 article as an old reference and says the former PCB-only, kit, and assembled products are no longer available. No public fabrication package was verified. Search the used market for an original Tynemouth unit, or consider a current Petskey or source-available PET-N build.

Sources
  • Commodore PET series Stated family
AvailableChecked Jul 27, 2026Unified Retro Keyboardby Dave (osiweb)

Replaces an Apple II or II Plus keyboard and can also provide ASCII keyboard input for an Apple-1 or Replica 1.

The ReActiveMicro page exposed assembled and kit selectors plus an Add to cart control on 2026-07-27, while also rendering a stock-notification control; confirm the chosen variant before ordering. The kit requires extensive through-hole soldering. Encoder connector placement and keymap jumpers differ by host. Project notes also document Revision 4.2 encoder diode-jumper errata.

Sources
  • Apple II Exact model
  • Apple II Plus Exact model
  • Apple-1 Exact model
  • Replica 1 Plus Exact model
AvailableChecked Jul 24, 2026WOOTSwitchby Joe's Computer Museum and saybur

Shares one basic ADB keyboard and mouse among as many as four retro-computer hosts.

The current product page offered build-it-yourself and fully assembled selections on 2026-07-24. Only basic ADB keyboards and mice are supported. The firmware remains under active development and the maker warns that bugs remain.

Sources
  • Macintosh ADB Bus/interface
  • Apple IIgs Bus/interface