Amiga 500 upgrades

Adds 8 MB of Fast RAM and a bootable 44-pin IDE controller at the Amiga 500 CPU socket.

For this system (exact model): Both the upstream project and current seller support the A500. Installation uses the CPU position and may require desoldering; attach IDE media only after verifying pin 1 and supply the separate adapter or drive.

The assembled Lotharek revision exposed a login-or-register-to-buy path on 2026-07-27; the original Oleg Mishin design files, ROM, firmware, software, and four-layer PCB are public. The box contains only the board. Kickstart and Workbench 1.3 or newer can autoboot without a patched scsi.device. A socketed CPU makes installation simple, but an unsocketed CPU must be desoldered. Pin 1 must be observed when attaching CF or SD hardware because a reversed adapter can destroy the CPLD. The open repository documents the original A500 design, while the current seller alone claims A500 Plus support for its revised hardware.

Adds 512 KB of trapdoor RAM and a real-time clock to an Amiga 500 on a compact newly made board.

For this system (exact model): The seller explicitly identifies A501 Redux as an Amiga 500 trapdoor expansion, and human visual review confirms direct trapdoor insertion. Confirm the computer's current memory and Agnus configuration and obtain the unpublished clock and backup details before use.

The product page exposed a login-or-register-to-buy path on 2026-07-27 but supplies only the Amiga 500 purpose, 512 KB capacity, RTC function, and photographs. Human visual review confirms that it plugs into the trapdoor expansion. The RTC chip, backup-cell design, clock setup, memory mapping, motherboard and Agnus limits, and Amiga 500 Plus behavior remain unpublished, so the catalog retains only the exact Amiga 500 relationship.

Upgrades a Revision 8A Amiga 500 motherboard to 2 MB of Chip RAM with a soldered internal module.

For this system (exact model): This module is limited to Revision 8A Amiga 500 motherboards. Verify the board revision before ordering, expect soldering, and accept that the trapdoor RAM expansion will no longer be usable.

The product page exposed a login-or-register-to-buy path on 2026-07-27. It is only for Amiga 500 Revision 8A motherboards, requires soldering, and makes the trapdoor RAM expansion unusable. The current Revision 3 no longer needs the LSP connection shown on page 6 of the older fitting manual, so follow the current seller note rather than that obsolete step.

Generates the Amiga READY signal so a compatible 3.5-inch PC floppy mechanism can replace an Amiga drive.

For this system (bus/interface): DriveRDY targets the Amiga floppy interface. Confirm the selected PC mechanism, 34-pin orientation, power-connector clearance, and DD-only limitation.

The product exposed a login-or-register-to-buy path on 2026-07-27 and was tested with more than forty mechanisms from several manufacturers. It operates only in double-density mode. Some Alps and Mitsumi drives place their power connector where DriveRDY physically overlaps it. Human review confirms the simple inline fit but supplies no exact Amiga model, cable-orientation, drive-select, or chassis evidence, so the existing interface-based relationships remain conditional.

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

For this system (exact model): MicroMiga names the Amiga 500 as an example suited to the approximately 8 cm FAT version with screw-retained connectors.

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.

Replaces supported 34-pin floppy drives with disk images stored on a USB flash drive.

For this system (stated family): FlashFloppy explicitly supports internal Commodore Amiga drives and says an internal DF0 replacement usually needs only jumper S0. The documentation is family-level, so confirm the A500 drive-height, button, display, cable, and power fit before installation.

FlashFloppy directly supports most SFR-prefix Goteks with a 34-pin header. Do not buy a UFA-prefix USB-floppy model; 26-pin DU26 and TU26 models require modification, and the project recommends avoiding the FDD-UDD U144K. Gotek's maker site accepts only wholesale orders of at least ten, while the linked specialty catalog lists several individually priced, configured units. Confirm the microcontroller, installed firmware, front-panel fit, cable orientation, power, and host-specific jumpers before installation. Initial FlashFloppy programming may require a boot jumper and a USB programming cable or USB-TTL adapter.

Replaces compatible 34-pin floppy drives with read/write disk images on SD or SDHC media.

For this system (stated family): The official material supports the Amiga family. Some Amiga cables are physically reversed, so identify pin 1 rather than relying on connector orientation and confirm mounting and control access.

All fourteen Rev C, Rev F, and MAX hardware variants exposed current login-or-register-to-buy paths on 2026-07-27. Rev C and Rev F use a standard floppy 5 V supply; the manual specifies at least 400 mA and says the 12 V line is unused. MAX accepts either 5 V over Micro-USB or 7-12 V center-positive DC power. Verify pin 1, drive-select jumpers, cable twists, voltage, and physical fit before connection: some computers reverse the usual 5 V and 12 V floppy-power positions, and incorrect power can damage both emulator and host. The firmware reads and writes supported images but does not reproduce variable-bit-rate protection completely; IPF and STX support is partial.

Adds read/write SD floppy emulation in compact 34-pin and 26-pin FPC forms.

For this system (stated family): HxC officially supports the Amiga family. Some Amiga ribbons are physically reversed, so identify pin 1 rather than relying on connector orientation and confirm mounting and control access.

All five Lotharek Slim variants exposed current login-or-register-to-buy paths on 2026-07-27. Choose the 34-pin HE10 or 1 mm 26-pin FPC version for the host; the 26-pin form requires the manual's ID0A setting. Supply regulated 5 V and verify the host connector, voltage, pin 1, drive select, cable, and mounting before connection. The manual specifies at least 300 mA and a 500 mA maximum figure. The firmware reads and writes supported images but does not reproduce variable-bit-rate protection completely; IPF and STX support is partial.

Streams read-only floppy images from a modern USB host to compatible 34-pin drives or an Amiga external-floppy adapter.

For this system (stated family): Use the standalone unit as an internal 34-pin replacement or Ami2PC through the external-floppy port. Ami2PC DF1 booting needs Kickstart 2.0 or newer; the seller does not document older configurations or the modification it mentions. Disconnect USB before changing any Amiga-side connection.

The standalone unit, cable set, and Ami2PC bundle exposed current login-or-register-to-buy paths on 2026-07-27. The official HxC home page and release notes show that the software project remains active in 2026. The unit needs a modern computer running the HxC host software and emulates disks read-only. The standalone set includes a 40 cm floppy ribbon and USB A-to-B cable; Ami2PC instead adds the Amiga external-floppy adapter. Never connect or disconnect the 34-pin or Amiga-side cable while USB is attached; disconnect USB first. Ami2PC can use Amiga disk-copy software to write a real disk in DF0 from an emulated DF1. Its early-boot workflow needs Kickstart 2.0 or newer. The seller still does not identify which oldest Amigas need its unspecified modification, so do not rely on early-model boot support without separate instructions.

Adds about 1.7 meters of reach between a compatible nine-pin controller and its vintage computer.

For this system (stated family): AutumnHippo lists Commodore Amiga controllers. The cable extends an already compatible controller and does not convert another system's protocol.

AutumnHippo exposed an add-to-cart route at USD 7 on 2026-07-30. Protovision separately showed ten joystick extension cables in stock at EUR 10 with a one- to two-week shipping estimate. The exact long and short products pictured by the C64 OS guide are not identified, so the catalog keeps current length and seller variants together.

Provides a new 1.7-meter nine-conductor lead for repairing compatible vintage joysticks and controllers.

For this system (stated family): The seller lists Commodore Amiga controllers. Reproduce the controller's original wiring and verify the finished cable rather than relying on conductor colors.

AutumnHippo exposed an add-to-cart route at USD 7 on 2026-07-30. Basic soldering is required. Trace the existing cable or controller circuit before removal: the seller explicitly warns that wire colors can differ and that systems sharing a nine-pin plug do not necessarily share controller wiring.

Converts composite, S-Video, RGB, RGBI, and VGA-family retro signals to simultaneous digital and analog DVI-I output.

For this system (stated family): The recognized-mode list covers Amiga OCS and ECS timings. Supply a correctly wired RGB or analog-video cable and a destination display that accepts the source-derived refresh rate.

The European SCART and Japanese JP21 Revision B pages exposed login-or-register-to-buy paths on 2026-07-27. Never connect an EU SCART cable to the JP21 version: the seller says the different pinout can damage the device. The newest dated hardware announcement says units made since June 2025 have a larger OLED and USB-C power, but an older section still says Micro-USB. Human review found no package clarification, so confirm the connector, power requirement, and included USB items with the seller. A DVI-to-HDMI cable and source-system cables are sold separately. Medusa line-doubles when needed but does not change vertical refresh rate, so the destination display must accept the resulting 50 or 60 Hz signal and may blank briefly when the source changes resolution. Install only firmware matching the hardware revision.

Connects a PS/2 mouse to Commodore, Amiga, Atari ST, and Atari 8-bit computers with host-specific mouse, joystick, paddle, and tablet modes.

For this system (stated family): The official documentation supports Amiga-family mouse operation. The default mode provides two buttons and driver-assisted wheel or middle-button support; a forced mode provides three buttons without a driver.

The official shop listed immediate delivery from EUR 34.07 on 2026-07-30. Protovision listed five units from EUR 38, with the slim connector costing EUR 3 more. The slim version fits every supported computer; the wider screw-in version has documented clearance exclusions including the Amiga 600 and Atari 1200XL. A USB mouse works only if the mouse itself supports the PS/2 protocol through a passive adapter.

Replaces many 24-, 28-, 32-, and 40-pin EPROMs and mask ROMs with a configurable RP2350 board programmed over USB.

For this system (exact model): The project repository explicitly names the Amiga A500 and describes a 40-pin 16-bit variant for its ROM application. Confirm the motherboard revision, Kickstart image legality and compatibility, current hardware revision, orientation, and clearance.

OneROM boards do not include ROM contents. Supply legally obtained images, choose the correct 24-, 28-, 32-, or 40-pin hardware, configure the exact ROM type and chip-select behavior, and confirm socket clearance and orientation. The open project provides a fabrication path. On 2026-07-24 JCM listed Fire 24, Fire 28, Fire 32, and Fire 40 as kit or assembled options, but its extracted page still called the 32- and 40-pin versions coming soon and did not establish which options could actually be ordered.

Hosts USB HID mice, keyboards, joysticks, and gamepads on classic Amigas, with more limited C64 and Atari ST modes.

For this system (exact model): The current seller lists the Amiga 500, and Retro 7-bit supports every Amiga through its current Amiga firmware. Install the adapter only while the computer is powered off.

Amiga Shop listed Rys MKII in stock at EUR 44.95 with a 3-4 day shipping estimate on 2026-07-30; AMIGAstore separately listed EUR 31.95 but out of stock with restock T.B.A. Retro 7-bit publishes current Amiga firmware 0.16, manual 1.5, Windows flashing software, and RysWheel installers. Seller claims conflict about wireless mice, so buyers should assume a wired supported HID device unless Retro 7-bit confirms a specific receiver.

Safely connects a Sega Mega Drive or Genesis controller to a Commodore 64, Commodore 128, or Amiga with configurable fire and jump mappings.

For this system (stated family): The maker states that the adapter works with all Amiga computers. Select Amiga mode before power-up.

The open CERN OHL 1.2 project supplies design and fabrication files plus a bare-PCB ordering route. On 2026-07-30, Gotek Retro listed its assembled C64/128 and Amiga adapter at EUR 15 and AMI64 listed its assembled C64 and Amiga adapter at GBP 20. Turn the computer off before changing selectors, choose the correct computer mode, and assign each function only once. The open and AMI64 versions may need a joystick extension cable at an Amiga 600.

Converts a Super Nintendo controller into Atari-style direction and fire signals for tested Commodore, Amiga, and Atari computers.

For this system (exact model): The maker tested a PAL Amiga 500. Pin 9 exposes the adapter's second fire output.

This is a build project rather than a current assembled product. Use the published Atari/Commodore wiring, ground PB1 to select that mode, and program the ATmega8A with the documented firmware and fuse bytes. The maker reports successful tests on a C64, Amiga 500, Amiga 600, and Atari 130XE; the 130XE relationship is banked because that exact target is not yet in the catalog. Minimig and Amiga CD32 are explicitly unsupported.

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

For this system (stated family): The seller supports Amiga computers without computer modification. Select Amiga mode; optional scroll-wheel support needs the linked driver.

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.

Connects USB HID mice, keyboards, joysticks, and gamepads to Commodore, Amiga, and Atari ST-family control ports.

For this system (exact model): The current Rev3 seller explicitly lists the Amiga 500. Amiga mode supports compatible HID mice, keyboards, joysticks, and pads; controller mappings and CD32-style functions depend on the device and software.

Sordan hosts current Rev3 and Micro Tom pages and a Rev3 manual, but neither product page exposed a price, stock value, or product-specific cart route on 2026-07-30. AMI64 listed TOM 2+ at GBP 40 but out of stock. TOM+ and TOM Rev2 are retained as older variants rather than presumed current products. USB peripherals may be hot-plugged, but the DB9 adapter must be connected only while the old computer is powered off. Device compatibility is not universal.

Connects modern Bluetooth gamepads and, on selected models, mice to Commodore, Amiga, and Atari computers.

For this system (exact model): The active A500 layout fits the Amiga 500 directly and supports Bluetooth gamepads, Amiga mouse emulation, and second and third buttons. CBMretro currently sells a cased build.

The official C64, A500, and 800XL Tindie pages were out of stock on 2026-07-30, although the project marks those models active and supported. CBMretro had equivalent cased C64/C128 and A500/A1200 hardware available at EUR 41.90; the original designer does not support third-party builds. Open hardware, firmware, and documentation remain available. The guide's original Unijoysticle tile is folded here as the retired WiFi predecessor: it needed a separately powered ESP8266 receiver and phone or desktop client, unlike the Bluetooth successor.

Connects supported vintage computers to Wi-Fi BBSes through an RS-232 serial port.

For this system (stated family): The vendor says the WiModem232 Pro was tested with all Amiga models. Connect it through the serial port using any required adapter and provide external 5 V power.

The current Pro V2 model was in stock on 2026-07-30. It has a female DB25 connector, a color TFT screen, a printed case, faster interface buffers, and signal-state LEDs. It needs an external 5 V micro-USB supply, and the host may also need a gender changer, DB9 adapter, or correctly wired computer-specific serial cable. The older display-free and OLED WiModem232 models are discontinued and replaced by this version.