Xerox 256MB DIMM Memory for Xerox Phaser 4510 Printers

256MB DIMM Memory for Xerox Phaser 4510 Printers. DIMM is a type of circuit board that holds memory chips. DIMMs have a 64-bit path because of the Pentium Processor requirements. Because of the new bit path, DIMMs can be installed one at a time, unlike SIMMs which on a Pentium would require two to be added.