HP Q2453BK combo DIMM memory module for LaserJet 4200 and 4300 series printers. This refurbished part provides 8MB/64MB SDRAM capacity in a standard DIMM form factor, enabling expanded print buffer and improved performance for high-volume printing environments. The module is compatible with HP LaserJet 4200 and 4300 series monochrome laser printers, supporting faster job processing and reduced bottlenecks in network printing deployments. Part Number Q2453BK installs via standard memory slot and is fully functional for typical office and workgroup printing scenarios. Tested and guaranteed; available via quote.