Tag: 64k

4 matching upgrades

Showing 4 products.

StatusProductWhat it doesCompatibilityLinks
AvailableChecked Jul 24, 202632K / 64K RAM Moduleby Z80 Kits
ram64kpagingcpmrc2014standard busenhanced buskit

Adds up to the Z80's full 64K addressable RAM with selectable start address.

Current kits are offered with 32K or 64K and Standard or Enhanced Bus headers. The listing is for the memory module only; a CP/M setup also needs the documented Pageable ROM and other core modules.

Sources
  • RC2014 modular systems Stated family
Vendor product pageOfficial module documentation
AvailableChecked Jul 24, 2026RAM Hijackerby Infinity Products
64k80 columnmemory expansionkitsoldering

Converts an Apple IIe 80-column card into a 64K auxiliary-memory card.

The current product page listed the complete kit without an out-of-stock marker on 2026-07-24. The included used TMS4464 DRAMs are free, unguaranteed bonus parts and may need replacement.

Sources
  • Apple IIe Exact model
RAM Hijacker product pageAssembly instructions
AvailableChecked Jul 24, 2026SMC 64 KB RAM Card for MSXby Infinity Products
64kmemory expansioncartridgekit

Expands a low-memory first-generation MSX computer to the MSX1 maximum of 64 KB RAM.

The current storefront listed the RAM card without an out-of-stock marker on 2026-07-24.

Sources
  • MSX1 computers Stated family
SMC 64 KB MSX RAM card
AvailableChecked Jul 24, 2026SMC 64K IMP-RAM Cardby Infinity Products
64k128kauxiliary slot80 columnmemory expansionactivity led

Expands a 64K Apple IIe to 128K through the auxiliary slot and provides 80-column memory.

The current Infinity Products storefront listed the card with a direct product page and no out-of-stock marker on 2026-07-24.

Sources
  • Apple IIe Exact model
SMC 64K IMP-RAM product page