ZX Spectrum expansion-bus hardware

Adds two configurable joystick ports, reset control, activity indicators, and an expansion pass-through to ZX Spectrum hardware.

For this platform (bus/interface): The seller documents original ZX and compatible edge-connector use, reset, and pass-through, but explicitly excludes Timex 2048. Confirm the target computer's edge-connector wiring and the unit's firmware revision.

Lotharek marks the interface discontinued and explicitly says it does not work on the Timex 2048. A used unit can contain first-release or later firmware with different mode choices and address decoding, so identify the firmware and test pass-through hardware before relying on it.

Combines DivMMC-compatible microSD storage, 512 KB of expansion RAM, dual-AY audio, DAC modes, and configurable joystick or mouse input on the ZX expansion bus.

For this platform (bus/interface): BISON uses the Spectrum edge connector and includes pass-through access. Exact clone support depends on edge power and signal behavior; clones without 9 V on pin 3B require a documented hardware change.

The seller exposed a login-or-register-to-buy path on 2026-07-27 and documented firmware 1.5. Power off before changing the edge connection or input mode. Automatic Sinclair-versus-Amstrad selection depends on 9 V at edge pin 3B; compatible clones without that signal need the documented modification. Firmware updates require a separate Gowin programmer and removal of the flash ROM. Prepare a separate FAT32 microSD card with the supported ESXDOS release.

Adds CompactFlash storage, selectable disk firmware, an LCD, and a five-mode joystick interface to original ZX Spectrum computers.

For this platform (bus/interface): This edge-connector interface was tested on original Sinclair and Amstrad Spectrum hardware. Clones are explicitly not guaranteed; confirm expansion-bus wiring, firmware, media preparation, and joystick mode.

Lotharek marks this revision discontinued. The seller says its joystick functions were tested on original Sinclair and Amstrad ZX Spectrum computers and does not guarantee clones. Media needs one active FAT16 partition, and compatibility still depends on selected firmware and correctly prepared software images. Identify the installed firmware and switch settings before using a second-hand unit.

Combines CompactFlash storage, four selectable firmware slots, AY sound, stereo output, and two joystick ports on a ZX Spectrum expansion interface.

For this platform (bus/interface): This is an edge-connector DivIDE interface, but the exact mode and compatibility depend on the computer generation. The catalog does not extend the listing to unverified clones or the +2A.

The seller exposed a login-or-register-to-buy path on 2026-07-27. Use a CompactFlash card with one active FAT16 partition and remove it only while power is off. The page distinguishes Sinclair and Amstrad bus modes, says the grey +2 is not an Amstrad-mode machine, and explicitly names +2B and +3 for Amstrad mode. It does not clearly establish +2A support, so that model is not attached.

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

For this platform (bus/interface): DivMMC-USB is a Spectrum edge-connector device, but the current page documents important generation-specific limitations. Do not infer support for +2A, +2B, +3, or untested clones from the connector alone.

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.

Adds AY sound, stereo output, joystick and mouse modes, reset controls, and edge-connector pass-through to ZX Spectrum-compatible expansion buses.

For this platform (bus/interface): The seller documents a Spectrum expansion-port interface with pass-through but not a safe exact-model matrix. Confirm edge power, signal behavior, and physical clearance for the intended computer.

The seller exposed a login-or-register-to-buy path on 2026-07-27. The page describes ZX Spectrum and compatible expansion-port use but does not give an exact computer, power, or later-Amstrad compatibility matrix. Human review supplied no readable model-specific evidence, so the record remains only on the shared expansion-bus page. Confirm the intended machine and power off before changing the edge connection or input hardware.

Adds two configurable Atari-style joystick or mouse ports and a pass-through connector to broadly compatible ZX Spectrum expansion buses.

For this platform (bus/interface): The seller describes ZX Spectrum and compatible expansion-port use but does not publish a safe exact-model matrix. Confirm edge-connector signals and power for the intended computer, especially +2A, +2B, +3, and clone systems.

The seller exposed a login-or-register-to-buy path on 2026-07-27 and spells the listing name Kemspton MAX 2. Power the computer off before connecting or removing the interface, joysticks, or mouse. Original Sinclair joysticks are not supported. Human review supplied no readable exact-model matrix, so the record remains only on the shared expansion-bus page; confirm power rails and later Amstrad-model behavior before purchase.