Original Manufacturer, Micron Technology's D6112AoX is a replacement accessory for the HP 6112A 256MB memory kit. The 64 MB DIMMs in the original kit are no longer manufactured, so our kit contains 4-128MB Micron DIMM modules, producing a 512MB EDO ECC DRAM DIMM HP Memory upgrade kit for LH4, LH4r and LXr8000 Netservers. Complete Compatibility guaranteed 20-day risk-free trial We guarantee that the memory you receive will be 100% compatible with your system. If not, simply return it to us within 20 days for a full refund. In addition, our RAM comes with a limited lifetime warranty and free tech support. So try our RAM for 20 days — there’s almost nothing to lose! Memory Sub-System: System Memory Module Type: DIMM Memory Type: EDO DRAM (Extended Data Out, Hyper Page Mode) Configuration (bitsXbits): 64x80 ECC Fault Tolerance Level: ECC Speed (MHz): 100MHz Access Time (ns): 50 Number of Pieces: 4 x 128MB DIMM Number of Contacts: 168 Warranty: Limited lifetime warranty Availability: Usually ships in 3-4 business days. D6112AoX$294.40