The Mac Plus shipped from the factory with 1 MB of system memory installed in the form of four 256 KB SIMMs. It can be upgraded to 2.5 MB and 4 MB configurations using 150ns or faster 1 MB 30-pin SIMMs.
The Mac Plus shipped from the factory with 1 MB of system memory installed in the form of four 256 KB SIMMs. It can be upgraded to 2.5 MB and 4 MB configurations using 150ns or faster 1 MB 30-pin SIMMs.