| Manufacturer Part Number | 647657-071 |
| Manufacturer Part Option | 647907-B21, 647907-B21, M391B5273DH0-YH9 |
| Brand | HP |
| Type | DDR3 SDRAM |
| Capacity | 4 GB |
| Form Factor | UDIMM |
| Memory Features | Unbuffered ECC |
| Bus Speed | PC3L-10600 |
| Memory Speed | 1333 MHz |
| Number of Pins | 240 pin |
| Latency | CAS 9-9-9 |
| Voltage | 1.35 V |