Tag: passthrough

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

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.

Macintosh SE/30 PDS adapter for combining a supported CPU accelerator with a supported video or Ethernet card.

The Artmix product page exposed a current Add to cart control on 2026-07-24.

PDS memory accelerator that replaces Macintosh SE/30 SIMMs with 256 MB of SDRAM and provides an unbuffered PDS pass-through.

The Tindie page reported four assembled cards in stock at $297 on 2026-07-27. Its United States shipping section simultaneously showed a free rate and said the item did not ship there, so confirm destination availability at checkout. The current Rev B manual covers firmware v0.8.0. It warns against using the older v0.5.4 extension with address translation, documents a ROM-shadowing bypass for timing-sensitive accelerator functions, and says Apple Personal Diagnostics memory tests can hang or corrupt memory near completion. A cache-slot accelerator must never be inserted directly into the SE/30 PDS or the Synchr pass-through; use the correct SE/30 adapter. Three-card stacks discussed by the community remained untested.