Manufacturer
Cortex Design Technologies, UK
Date
1990
Amiga
A500
Interface
trapdoor slot
    Memory Expansion
  • 512 kB RAM
  • four socketed 256k×4 DIPs
  • connects to the trapdoor slot
  • battery backed up clock as an option
  • disable switch
Cortex Design Technologies Cortex 512K - rev 3.3, w/ clock front side
rev 3.3, w/ clock, front side
Cortex Design Technologies Cortex 512K - rev 3.3, w/ clock front side
rev 3.3, w/ clock, front side
Cortex Design Technologies Cortex 512K -  rear side
rear side
Cortex Design Technologies Cortex 512K - rev 2.5, w/o clock front side
rev 2.5, w/o clock, front side
Cortex Design Technologies Cortex 512K - rev 2.4, w/o clock front side
rev 2.4, w/o clock, front side

Advert (GB)
1990-12

Advert (GB)
1991-01

Advert (GB)
1990-03

Advert (GB)
1990-03