| C4286A | 2MB flash DIMM memory - Font storage device |
| C4287A | 4MB flash DIMM memory - Font storage device |
| C4292A | 8MB Traditional Chinese MROM DIMM - For LaserJet printers |
| C4293A | 8MB simplified Chinese MROM DIMM - For LaserJet printers |
| C7842-67901 | 8MB, 100-pin SDRAM DIMM memory module |
| C7842A | 4MB, 100-pin SDRAM DIMM memory module |
| C7842AX | 8MB, 100MHz SDRAM DIMM memory module |
| C7843-67901 | 16MB, 100-pin SDRAM DIMM memory module (Part approaching End of Life, please contact HP for availability) |
| C7843A | 16MB, 100-pin SDRAM DIMM memory module |
| C7845A | 32MB, 100-pin SDRAM DIMM memory module |
| C9121-67901 | 128MB, 100-pin SDRAM DIMM memory module |
| C9121A | 128MB, 100-pin SDRAM DIMM memory module |
| C9653A | 256MB, 168-pin SDRAM DIMM memory module |
| C9680A | 64MB, 100MHz SDRAM DIMM memory module |
| D4838A | Font DIMM - Korean Font memory DIMM |
| Q1887A | 64MB, 100-pin SDRAM DIMM memory module |
| Q9121A | 128MB, 100-pin SDRAM DIMM memory module Synchronous DRAM DIMM |
| Q2453DK | Q2453dk |
| Q7707-67951 | 32MB, 100-pin SDRAM DIMM memory module |
| Q7707A | HP 32MB 133 MHz Synchronous SDRAM DIMM |
| Q7708-67951 | 64MB SDRAM - 100MHz synchronous DRAM - DIMM package |
| Q7708A | HP 64MB 133 MHz Synchronous DRAM DIMM |
| Q7709-67951 | 133 MHz 128MB, 100-pin SDRAM DIMM memory module Synchronous DRAM DIMM |
| Q7709A | 133 MHz 128MB, 100-pin SDRAM DIMM memory module Synchronous DRAM DIMM |
| Q7709AX | 133 MHz 128MB, 100-pin SDRAM DIMM memory module Synchronous DRAM DIMM |
| Q7712AX | 256MB, 168-pin SDRAM DIMM memory module |
| Q2453-67906 | LJ 4200 Firmware DIMM |
| Q2453-67908 | LaserJet 4200 Firmware DIMM - Version 04.020.3 Part Q2453-67904 is no longer supplied. Please order the replacement, Q2453-67908 |
| Q2453-67917 | LJ4300 Firm Ware DIMM - Version 04.020.3 |
| Q2453-67925 | Lj4200 dimm (base model only) |
| Q2453-67927 | LaserJet 4200 Firmware DIMM - Version 04.020.3 |
| Q2453-67934 | LaserJet 4200L series Firmware DIMM |
