Atari Mega ST upgrades

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

For this system (stated family): The seller states Atari ST family support. Verify the exact controller and whether the FAT or Slim connector clears the computer.

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.

Adds a self-contained SAM2695 General MIDI sound module to an Atari ST-family computer's MIDI output.

For this system (bus/interface): The Mega ST service manual documents MIDI output. Connect it to GuMP, provide separate 5 V power, and use compatible Atari MIDI software.

The product page exposed a login-or-register-to-buy path on 2026-07-27. The box contains the cased module with an attached short MIDI cable, but the 5 V Micro-USB supply and speakers or headphones are separate. The seller identifies Atari ST use but does not prescribe player software; choose an Atari application that sends compatible MIDI data through MIDI OUT.

Replaces an Atari ST or Mega ST memory subsystem with a 4 MB expansion and a motherboard-specific adapter.

For this system (exact model): The seller explicitly includes Mega ST systems. Confirm the motherboard revision and socket arrangement before choosing an adapter; the installation requires substantial internal work.

The Heron board and three current adapters exposed order paths on 2026-07-27. A complete installation requires the Heron plus either the C070789-001 Revision F adapter, the C070523-001 Revision D adapter, or the universal socketed-MMU adapter. C070859-001 Revision 2.0 and C103414-001 adapters were still described as in development. The Shifter must be socketed or desoldered, the original RAM must be disabled, and A9 and WE wires must be connected. This is a skilled mains-exposed internal installation; disconnect power and choose the exact motherboard adapter before ordering.

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): Atari ST-family mode provides a conventional two-button mouse. Wheel and middle-button input are ignored.

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.

Adds an RTL8019AS Ethernet interface and an ISP1160 USB controller through the Atari cartridge port.

For this system (stated family): The product page explicitly includes Mega ST systems. Use the ROM cartridge port and install compatible networking and USB software.

The product page exposed a login-or-register-to-buy path on 2026-07-27. Ethernet operation depends on Atari networking software and compatible drivers; the page supplies NetUSB02 version 5, STinG 1.26, EthernE, and utility downloads. Confirm software support for the particular USB device class before buying. The optional IRQ connection is not required for the basic cartridge-port installation.

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

For this system (stated family): Current reseller documentation says Atari ST use requires additional adapters. Confirm the required DB9 extension and Atari firmware before ordering.

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.

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

For this system (stated family): Rev3 explicitly supports the Atari ST family. Confirm the required extension and physical access for the selected Mega ST chassis.

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.

Replaces an Atari ACSI hard disk with SD or microSD media in external, direct-plug, or internal Mega ST-family forms.

For this system (exact model): External and internal forms are supported. The internal version needs the dedicated Mega ST adapter and IDC20 cable; its 2024 adapter supplies power after one marked 5 V solder connection. External forms use the computer's ACSI port.

The internal, cased external, acrylic-case, and Mini pages exposed order paths on 2026-07-27. No form includes storage media. The current grey cased and internal revisions use USB-C, while the acrylic and Mini pages specify Micro-USB; a 5 V phone charger is not supplied. The cased units need a separately sold DB19-to-IDC20 ACSI cable, the Mini plugs directly into ACSI, and the internal unit needs a separately sold Mega ST or Mega STE adapter. The current cased page contains an older Micro-USB FAQ despite its revision notice saying USB-C. Older TOS versions can be slower or unsafe with DOS-compatible media, and some Atari DMA circuits or modern high-capacity card pairs need the documented troubleshooting or clock-capacitor fix. The optional DUCKBILL flasher requires a direct, bidirectional PC parallel port and Windows XP DOS console.