Manufacturer
Roctec, Hong Kong
Date
1991
Amiga
A500
Interface
trapdoor slot
  • 512 kB RAM
  • four socketed 256k×4, 70 ns DIPs
  • connects to the trapdoor slot
  • battery backed up clock
  • disable switch
Roctec RM550C -  front side
front side
Roctec RM550C -  back side
back side

Advert (US)
1991-01

Advert (DE)
1991-03

Advert (DE)
1991-10