Quest Memory Expansion

The Quest Memory Expansion was an early range of rather large memory expansion cards from a company called Quest International Computer Technology Ltd. (otherwise known as Quest Automation Ltd).

The company released various versions, 64K, 128K, 256K and 512K extra memory. However, these were the slowest memory expansion units ever made for the QL, based on 4164 RAM chips, running at the same speed as internal RAM - less than one megabyte per second - despite the lack of contention from video access.

This made them half the speed of the fastest 8-bit expansions, such as the CST RAMPlus, the early SuperQBoard and later Trump Card.

Prices were :

  • 64K RAM: £115
  • 128K RAM: £185
  • 256K RAM: £349
  • 512K RAM: £579

The boards measured 247mm x 97mm and were supplied in a large plastic casing. The 512K unit also required a separate power supply.

A ram disk was also provided with the memory interfaces, although this was supplied on separate microdrive cartridge.

Quest RAM Card Quest RAM Card Title: Quest Memory Expansion
Interface Type: Memory Expansion
Connection: Sinclair QL Expansion Bus
Through-Connector: No
Manufacturer: Quest Automation Ltd
Year First Sold: 1984
Original Price: From £115 (see above)
Reviews: QL User April 1985
Download Manual: Unknown
Accompanying Software: None

  • qlwiki/quest_memory_expansion.txt
  • Last modified: 2017/09/04 09:53
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