Replacement for C7850AX: Drop-In Alternatives We Stock
Looking for a replacement for the C7850AX (C7850AX - HP 128MB 168-Pin DIMM Memory for Color LaserJet 4550/5500)? 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 C7850AX
| SKU | C7850AX |
|---|---|
| Product | C7850AX - HP 128MB 168-Pin DIMM Memory for Color LaserJet 4550/5500 |
| Current price | $136.45 |
| Stock status | In Stock |
| Detail page | View C7850AX › |
Drop-in replacements for C7850AX
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.
C7850-60001 - HP 128MB 168-Pin DIMM Memory for Color LaserJet 4550/5500
SKU: C7850-60001
Price: $74.99
C7850-67901 - HP 128MB 168-Pin DIMM Memory for Color LaserJet 4550/5500
SKU: C7850-67901
Price: $87.03
Q7711-67951 - HP 128MB PC133 133MHz non-ECC Unbuffered 168-Pin DIMM Memory Module for LaserJet 3700 /4550 Series
SKU: Q7711-67951
Price: $147.09
RF5-2112-000CN - HP Transfer Roller with Gear for Color LaserJet 4500/4550
SKU: RF5-2112-000CN
Price: $113.68
RB1-9001-000CN - HP Access Panel to Pickup Roller for Color LaserJet 4500/4550 Series Printer
SKU: RB1-9001-000CN
Price: $113.68
RB1-9001-000 - HP Access Panel to Pickup Roller for Color LaserJet 4500/4550 Series Printer
SKU: RB1-9001-000
Price: $113.68
RB1-9001 - HP Access Panel to Pickup Roller for Color LaserJet 4500/4550 Series Printer
SKU: RB1-9001
Price: $113.68
RF5-2092-000CN - HP Pick-up Roller for Color LaserJet 4500 / 4550 Series
SKU: RF5-2092-000CN
Price: $113.68
C4251-67909 - HP Main Logic Formatter Board Assembly for Color LaserJet 4550 Series Printer
SKU: C4251-67909
Price: $143.39
RG5-5165 - HP High Voltage Power Supply Assembly for Color LaserJet 4500 4550 Printer
SKU: RG5-5165
Price: $153.05
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.