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Home : Apple Macintosh Performa 640CD DOS Compatible

System Specs for Apple Macintosh Performa 640CD DOS Compatible

Type of System:Desktops/Servers
Bus Architecture:(none or n/a)
CPU Type:66/33MHz Motorola 68LC040

System Memory

Standard Memory: 4 MB (removable) 4MB non-removable + 4 MB (removable) on DOS card
Maximum Memory:52 MB on system board / 32 MB on DOS card
Memory Expansion:2 sockets system board / 1 socket DOS card


This system supports the Apple DOS card. The maximum memory for the DOS card is 32MB, and has one socket. You may install standard 72pin non-parity SIMMs, 4mb, 8mb, 16mb and 32mb modules.

System Memory

Description OEM Part No. Kahlon
Part No.
Web Price Availability Details Order
4MB Module M1507LL/A, M3651LL/A KAPP507 $18.00 $8.00 In Stock  Product
8MB Memory M1508LL/A, M3652LL/A KAPP508 $15.00 $5.00 In Stock  Product
16MB Memory M3372LL/A KAPP372 $16.00 $6.00 In Stock  Product
32MB Memory M3373LL/A KAPP373 $17.00 $7.00 In Stock  Product