RAM & Memory Upgrades
1GB 144-PIN DDR2 SODIMM MEMORY RAM COMPATIBLE WITH PRINTERS (330-5857, CE468A, MDDR2-1024)
SIZE/CAPACITY: 1GB VOLTAGE/POWER CONSUMPTION: 1.8v CAS LATENCY: N/A SPEED: N/A TYPE/INTERFACE: 144-PIN DDR2 SODIMM 144-PIN DDR2 SODIMM
https://www.bizrate.co.uk/ram_memoryupgrades/1gb-144-pin-ddr2-sodimm-memory-oid2388581679.html