Replacement for C7842AX: Drop-In Alternatives We Stock
Looking for a replacement for the C7842AX (C7842AX - HP 8MB 100-Pin DIMM for LaserJet 2100)? Pro Disk Network ships HP drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the C7842AX
| SKU | C7842AX |
|---|---|
| Product | C7842AX - HP 8MB 100-Pin DIMM for LaserJet 2100 |
| Current price | $132.28 |
| Stock status | In Stock |
| Detail page | View C7842AX › |
Drop-in replacements for C7842AX
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
Q2626-60002 - HP 128MB DDR-266MHz PC-2100 Non-ECC 100-Pin DIMM Memory Module for LaserJet 2400/4250 Printer
SKU: Q2626-60002
Price: $126.21
C4170A - HP LaserJet 2100 Monochrome Laser Printer 10ppm 350-Sheet Tray 1200dpi x 1200dpi 8MB Memory
SKU: C4170A
Price: $276.32
C9129A - HP 8MB 100-Pin DRAM DIMM 4MB Flash Memory for LaserJet 5100/8100/8150/8150N/DN Series Printers
SKU: C9129A
Price: $157.89
RG5-4128-000CN - HP MP Tray Pick-up Roller Assembly for LaserJet 2100 / 2200 Series Learn
SKU: RG5-4128-000CN
Price: $87.74
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.