512K SIMM Upgrade
Documentation
Quality Memory For Your CoCo 3

Memory boards for the Color Computer 3 are getting harder and harder to find, and most use older 41256 DRAM chips. Why not give your CoCo 3 the advantage and convenience of readily available SIMM memory with this 512K SIMM Upgrade!

Standard Features

  • Uses two 256K SIMMs, 8 or 9 chips, 120ns or faster
  • Includes installation manual and schematic package
  • RS-DOS Memory Test Program supplied on 5 1/4" disk

0K Kit Also Available

If you wish to build your own upgrade and supply your own memory, you can purchase our kit at a reduced priced. It comes with the printed circuit board and all of the parts needed to build a fully functional 512K SIMM Upgrade. You supply the memory and the labor of putting it together.

512K SIMM Upgrade Specifications
Feature
512K SIMM Upgrade
512K SIMM Upgrade Kit
Memory
Two 256K SIMMs, 8 or 9 chip variant, 120ns or faster
None supplied
Supported Computers
Tandy Color Computer 3
Tandy Color Computer 3
Pricing
Product
Cost
512K SIMM Upgrade with Memory
$40 + s/h
512K SIMM Upgrade Kit (no Memory)
$25 + s/h
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Cloud-9 ● 3749 County Road 30 ● Delano, MN 55328 ● info@cloud9tech.com