Blizzard 1220/4
 connects to: Trapdoor Slot (A1200)
Processor: EC020@28Mhz
FPU: Optional 68881 or 68882@14Mhz or 28Mhz (PLCC)
MMU: None
Max Ram: 4MB (8MB with optional expansion)
Ram Type: Surface mounted DRAM chips.

An additional 4MB expansion called the Blizzard 1220/4/ADD4 was available for this card, allowing you to add up to 8MB in total


Jumper B: Use an external oscillator at up to 40Mhz
Jumper C: Set FPU clock speed to 14Mhz
Jumper D: Set FPU clock speed tp 28Mhz

Page contributors: Andreas Kähler, Andrew Lockyer, Orjan Lindgren
Updated: 7/16/2019 . Added: 12/22/2004