Amiga 4000 upgrades

Commodore's AGA big-box Amiga family, with a replaceable processor card.

Also called: A4000, A4000D, A4000T

At a glance

Introduced: 1992

Products listed: 16

Exact-model evidence: 4

Family/interface evidence: 12

Upgrade types: 7

Vintage searches: 0

Upgrade directory: A4000

Browse everything below, or filter by product type, availability, and compatibility basis. Notes explain whether evidence names an exact target, a broader family, or only the relevant bus or interface for this computer.

Showing 16 products.

StatusProductWhat it doesLinks
AvailableChecked Jul 24, 2026A3660by John "Chucky" Hertell and AMIGAstore.eu

Open 68060 processor card for Amiga 3000 and 4000 computers.

For this system (exact model): The assembled product explicitly supports Amiga 4000D and 4000T systems. It replaces the processor card and requires the supplied 68060 drivers and libraries.

AMIGAstore warned that only the last assembled units remained on 2026-07-24. Rabbit Hole Computing's bare PCB listing was sold out. Building from the GPL-licensed project files is an advanced assembly requiring the processor, programmed logic, connectors, and the rest of the bill of materials.

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AvailableChecked Jul 28, 2026DriveRDYby Boris Krizma / Lotharek

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

For this system (bus/interface): The page does not distinguish desktop and tower systems or drive-bay mechanics. Confirm the selected drive, cable, power, and clearance before installation.

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.

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AvailableChecked Jul 24, 2026EMPLANT Upgrade Partsby Utilities Unlimited

Replaces or upgrades the custom logic and serial clock parts on an existing EMPLANT Amiga expansion board.

For this system (exact model): The EMPLANT is a Zorro II board documented for the Amiga 4000. These are replacement or upgrade parts for an existing board, not a complete emulator. Macintosh emulation also requires legally owned compatible ROMs, software, adequate Fast RAM, and a supported CPU.

All three parts were in stock on 2026-07-24. These listings do not include an EMPLANT board. The P3 page says an A- or B-model board also needs other necessary parts to become a C model, but it does not provide a complete conversion kit or parts list; inspect the existing board and original manual before buying.

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AvailableChecked Jul 24, 2026Gotek Floppy Emulator with FlashFloppyby Gotek and Keir Fraser

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 normally uses jumper S0. The guide does not distinguish A4000 desktop and tower mechanics, so confirm the exact drive bay, cable orientation, power, front-panel access, and firmware for the installed chassis.

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.

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AvailableChecked Jul 27, 2026HxC SD Floppy Emulator Familyby HxC2001 and Lotharek

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. Confirm desktop or tower drive-bay mechanics, 34-pin cable orientation, drive select, power, controls, and firmware for the exact chassis.

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.

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AvailableChecked Jul 27, 2026HxC Slim SD Floppy Emulator Familyby HxC2001 and Lotharek

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. Confirm desktop or tower mechanics, connector type, cable orientation, drive select, 5 V power, controls, and firmware for the exact chassis.

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.

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AvailableChecked Jul 28, 2026HxC USB Floppy Emulator Familyby HxC2001 and Lotharek

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 the seller's generic Amiga Ami2PC external connection. Confirm desktop or tower fit, external connector, drive selection, and boot configuration. Disconnect USB first before changing connections.

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.

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AvailableChecked Jul 30, 2026Joystick Extension Cable (DB9)by Generic / AutumnHippo

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.

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AvailableChecked Jul 30, 2026Joystick Replacement Cable (DB9)by Generic / AutumnHippo

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.

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AvailableChecked Jul 28, 2026Medusa Rev. Bby AcidMaker / Lotharek

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 multiple Amiga ECS and AGA modes, including doubled and multiscan timings. Supply the correct cable and expect the destination display to resynchronize when software changes resolution.

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.

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AvailableChecked Jul 30, 2026Micromys V5by individual Computers

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.

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AvailableChecked Jul 30, 2026Rys MKIIby Retro 7-bit

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 4000, 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.

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AvailableChecked Jul 30, 2026Sega Mega Drive/Genesis Controller Adapter Familyby SukkoPera / Gotek Retro / AMI64

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.

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AvailableChecked Jul 27, 2026TIKUS USB Adapter 2.0by Lotharek

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.

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Check statusChecked Jul 30, 2026TOM USB HID Adapter Familyby Electronica4u

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 4000. Amiga mode supports compatible HID mice, keyboards, joysticks, and pads.

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.

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AvailableChecked Jul 30, 2026WiModem232 Proby CBMSTUFF.COM

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.

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