Found Add4 blizzard 1220 ram expansion

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Snoozy

Only Amiga makes it possible
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Please pm me if you have one for sale

(This is to register a private sale between myself and tbtorro)
 
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Feedback left, it was good to deal with this seller :)

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1200/4 is just a 4mb ram expansion with FPU socket and real time clock so is just a ram expansion.

1220/4 has a EC 68020 running at 28mhz, 4mb ram, FPU socket and real time clock and is an accelerator.

Both are expandable to 8mb.
 
I haven't seen the expansion cards in the flesh but would presume the difference is..

1200/4/ADD4 expansion has a male (pin) connection

1220/4/ADD4 expansion has a female (socket) connection


Just having a quick peek on bboah it appears that the 1220 board has two rows of pins whilst the 1200 board has three rows of sockets; so presumably their is a difference in the upgrades.
 
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