Tag: external adapter

Converts the digital video expansion signals from an Apple IIc-family computer or Laser 128 to an HDMI-compatible output.

JCM showed 10 assembled units in stock on 2026-07-24. The product uses an HDMI-compatible connector, but the source does not claim audio output or universal display compatibility. Power down before attaching or removing vintage-computer video adapters.

Adapts Apple IIgs analog RGB and composite sync to a 15 kHz-capable VGA connector.

The adapter was in stock and backorderable on 2026-07-24. Most ordinary VGA monitors do not accept 15 kHz video; verify the exact display before ordering.

Adds adjustable CRT-style dark lines to a compatible progressive VGA signal before it reaches a modern display.

The ArcadeForge maker page remains online but exposed no clear current price or Add to Cart control on 2026-07-30. Arcade Express marked its unit out of stock, while Jammastar displayed both a last-items warning and a notify-when-available control. Confirm stock before ordering. The maker designs the device around 640 x 480 VGA. A stock C64, C128, or other 15 kHz computer cannot connect directly; it first needs a suitable scaler that produces a supported progressive VGA signal.

Breaks compatible Atari and Commodore monitor-port signals out to S-video, composite video, and bridged mono audio connectors.

The current product data and catalog reported the assembled breakout in stock on 2026-07-27. Cables and any required computer modification are not documented as included.

Converts Commodore 128 80-column RGBI into 15 kHz analog RGB for a compatible display or a separate VGA scaler.

The official site says sales resumed through its Square store in January 2024, but current stock was not independently confirmed on 2026-07-30. BIT-C-128 is not a scan converter: direct use requires a display that accepts roughly 15.75 kHz analog RGB. An ordinary VGA display also needs a GBS-8200, GBS-8220, or another suitable scaler. Supply regulated 5 V power and the cables or adapters required by the selected display path.

Combines the Commodore 128's separate 40-column analog and 80-column RGBI outputs into a switch-selectable SCART connection.

Retro-Updates marked revision 5.1 sold out and soon available again on 2026-07-30. The official project page still describes direct email ordering at an older EUR 22 price, but its order news is from 2021; confirm current production, price, revision, case choice, and shipping before paying. This adapter does not scan-convert the original video timing. A SCART display must accept the signals directly, or a separate SCART-to-HDMI converter is required and may produce variable results.

Converts the C128's 80-column digital RGBI output to analog RGB and composite sync for a separate video scaler.

Protovision reported eight units in stock at EUR 30 on 2026-07-30. This adapter converts signal levels and combines sync but does not raise the scan rate. Its documented setup uses a separate GBS-8200 or GBS-8220, which is not included. Follow the page's normal/inverted-sync procedure if GBS auto scan does not lock cleanly.

Combines a Commodore 128's 40-column and 80-column video paths in one switchable external adapter.

Pyrofer's Projects lists the NTSC board and its separate C128DCR mounting tab as out of stock. The normal package uses tabs for the flat C128 and standard C128D; the differently spaced C128DCR requires the separate tab. Although the board has a PAL/NTSC selection, the seller says changing format also requires a different oscillator IC, and the listed package includes the NTSC oscillator.

Converts digital RGBI into 15 kHz analog RGB and can break out a Commodore 128's 40-column S-Video and audio.

The maker lists the assembled board as out of stock and publishes no fabrication package. This is not a scan converter; the display must accept the source timing, normally about 15 kHz, or use a separate scaler. The maker's design history says the completed logic omits the valid intensity-only dark-gray color, which appears black. The board also passes 5 V to HD-15 pin 9; verify that the attached cable and display do not ground that pin.

Converts MDA, CGA, EGA, and Commodore 128 RGBI into 15 kHz analog RGB with selectable sync.

The maker labels the current project revision released, but its assembled Tindie listing said the seller was taking a break on 2026-07-30. The maker publishes a schematic but not a complete fabrication package. This is not a scan converter: an ordinary VGA display needs a GBS-8200, GBS-8220, OSSC, or another compatible scaler. The board requires 5 V through Micro-USB or a suitable GBS power connection.

A period automatic RF switch box currently offered as new old stock for Commodore 64 and 128 systems.

Poly.play listed original part number 252652-01 as immediately available in original packaging on 2026-07-30. This is finite new old stock, not a modern video converter. It requires a television or demodulator with a compatible analog RF input, connector, channel, and regional broadcast standard; the seller page does not publish those electrical details.

Host-specific passive A/V adapters for the VIC-20, C128 family, Plus/4, and Ultimate64 replacement mainboards.

Commodore4ever exposed active Add to cart controls for all four variants on 2026-07-30. The Ultimate64 board uses a different A/V pinout from an original C64; do not use that adapter on a stock C64 or assume compatibility with the newer Commodore 64 Ultimate. The C128 variant handles the 40-column analog output, not the separate 80-column RGBI port.

Maps an independent second gamepad button to Up while preserving the controller's normal directional Up input.

MicroMiga listed the family from EUR 8.99 on 2026-07-30. The extracted variation table explicitly marked the short FAT version out of stock but did not expose a reliable stock state for the longer, slim machine-side version, so confirm the desired model before ordering. A controller needs genuinely independent fire buttons; duplicated or cloned fire buttons do not work for the remapping.

Connects a legacy analog PC game-port joystick or steering wheel to a Commodore 64 as paddles or a digital joystick.

Poly.play showed Jocopod available immediately at EUR 33 with a three- to ten-workday German delivery estimate on 2026-07-30. The optional 2.3-meter digital foot pedal was listed separately at EUR 15 but was out of stock; it is an accessory to Jocopod and remains folded into this record.

Swaps both Commodore 64 control ports at the press of a button without moving the connected controllers.

The no-case version showed four units in stock at EUR 32 on 2026-07-30. The listed range through EUR 42.90 includes the optional black 3D-printed case. A brass standoff supports the board while its illuminated button is pressed.

Converts composite or S-Video from a C64 or C128 to selectable-resolution analog VGA output.

The exact Portta scaler was documented in a 2016 hands-on review, but no current maker product page or stable new-stock source was verified in 2026. The unit includes a short USB-A power cable but no power supply or computer-specific video cable. Results varied by computer: the reviewed flat C128 looked excellent over S-Video, a C64C showed vertical banding and a rainbow border, and a C128DCR produced poor S-Video but good composite output.

Combines push-button Commodore 64 control-port selection with a dial-adjustable autofire rate.

The maker's store exposed an add-to-cart route at a USD 29.99 sale price, reduced from USD 39.99, on 2026-07-30. The public description identifies the C64 but does not publish broader host compatibility, complete signal handling, or an installation manual.

Converts NTSC composite video and analog audio from an Apple II or Apple III to an HDMI display.

The adapter was in stock and backorderable for $45 on 2026-07-30. It was not tested or intended for PAL systems. Simultaneously connecting a CRT and this adapter requires a composite impedance-matched switch box or video may degrade or disappear. The package includes generic composite, HDMI, audio-adapter, and power cables, but not a computer-specific Commodore A/V cable.

Connects a Super Nintendo controller to the user port of supported Commodore computers for software written to read its serial protocol.

TexElec listed the adapter at USD 14.99 and in stock with backordering enabled on 2026-07-30. Most supported machines use the supplied power jumper. Some PET systems do not provide user-port power and need 5 V from the cassette port or an external source; high-current third-party controllers should also use external power because the user port is rated for 100 mA.

Connects as many as eight standard SNES controllers to a Commodore 64 or 128 through its two control ports.

Poly.play listed the adapter at EUR 45 but marked it out of stock on 2026-07-30. Controllers are separate; the store's current third-party SNES pad is a commodity accessory and remains folded into this record. Poly.play's short description incorrectly says user port, while the linked original wiring document and C64 OS technical explanation both say that SuperPad64 occupies the two control ports and leaves the user port free. Confirm the supplied connector arrangement with the seller before ordering a future production run.

Host-specific C64 and C128 breakouts with open eight-pin designs plus an assembled five-pin option for early C64 boards.

Retro Rewind listed the assembled eight-pin C64 version, while Commodore4ever listed both eight-pin and early five-pin C64 versions on 2026-07-30. The open eight-pin C64 and dedicated C128 variants remain buildable from board, BOM, and case files. The standard C64 board physically blocks the IEC port on a C128, so use the dedicated C128 layout there. Optional two-channel output requires a second SID or similar source wired to pin 7; otherwise both output channels carry the computer's mono audio.

Connects a PS/2-compatible mouse to an Atari 8-bit or Atari ST-family computer.

Both storefront collections marked their matching adapter sold out on 2026-07-24. A USB mouse works only if it also supports the PS/2 protocol and is used with a suitable passive USB-to-PS/2 adapter.

Adapts a USB mouse or digital USB joypad to supported Amiga, Atari ST and STE, or Commodore 64 GEOS mouse ports.

The product page exposed a login-or-register-to-buy path on 2026-07-27. Only digital joypad input is supported; analog controls are not. TIKUS is distinct from the visually similar, non-upgradable Tank Mouse Kickstarter adapter. The revision sold since 2026-03-24 adds stored per-axis sensitivity configuration for Amiga and Atari mouse modes.