Apple Macintosh IIsi Memory

Standard Memory: 1 MB (non-removable) + 1, 2 or 4 MB (removable)
Maximum Memory: 65 MB
Expansion Sockets: 4 sockets (1 bank of 4)
Memory Comments: Depending on the date of purchase, the MAC IIsi came standard with either 2MB, 3MB, or 5MB of memory. There are four sockets on the system board, all of which are occupied with standard memory modules. Any upgrade involves replacing these.

Processor: 20MHz Motorola 68030