Like most things NBX-related this memory upgrade has been cancelled by HP/3COM. After doing a lot of digging I found a compatible replacement. If you need this upgrade, the compatible part number is:
Micron MT16LSDT3264AG-10EE1
I would also ensure the chip says:
PC100-222-620
256 MB, SYNCH, 100MHz, CL2
Buying the official kit was quoted at ~$300 from a reseller, while spares of the same chip can be found on eBay for around $15! Just wanted to share this information in case anyone ever needs this upgrade.
Micron MT16LSDT3264AG-10EE1
I would also ensure the chip says:
PC100-222-620
256 MB, SYNCH, 100MHz, CL2
Buying the official kit was quoted at ~$300 from a reseller, while spares of the same chip can be found on eBay for around $15! Just wanted to share this information in case anyone ever needs this upgrade.