Replacement for CP6JX: Drop-In Alternatives We Stock
Looking for a replacement for the CP6JX (Dell CP6JX Connectx-4 Lx MCX4121A-ACAT 2-Ports 25GbE PCI Express 3.0 x8 Network Adapter)? Pro Disk Network ships Dell 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 CP6JX
| SKU | CP6JX |
|---|---|
| Product | Dell CP6JX Connectx-4 Lx MCX4121A-ACAT 2-Ports 25GbE PCI Express 3.0 x8 Network Adapter |
| Current price | $71.58 |
| Stock status | In Stock |
| Detail page | View CP6JX › |
Drop-in replacements for CP6JX
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.
Dell Dell YHMMM Dell 0YHMMM / YHMMM Mellanox Connectx-3 2 x Ports 40GbE QSFP+ PCI-Express High Profile Network Adapter Card
SKU: DELL YHMMM
Price: $223.68
Dell Dell JGWVY Dell 0JGWVY / JGWVY ConnectX-5 CX512F 2-Ports 25GbE SFP28 PCI Express 3.0 x16 Low Profile Network Adapter
SKU: DELL JGWVY
Price: $260.53
Dell Dell HWTYK Dell 0HWTYK / HWTYK Mellanox ConnectX-4 2-Ports 100Gb/s QSFP28 PCI Express 3.0 x16 Plug-in Card Network Adapter
SKU: DELL HWTYK
Price: $434.21
Dell 71C1T Dell 071C1T / 71C1T ConnectX-5 EN 2-Ports 100GbE QSFP28 PCI Express 4.0 x16 Full Height Network Adapter
SKU: 71C1T
Price: $489.47
Dell F6FXM Dell 0F6FXM / F6FXM Mellanox ConnectX-6 DX 2 x Ports 100GbE QFSFP56 PCI Express Low Profile Network Adapter Card
SKU: F6FXM
Price: $907.37
Dell 540-BBOB Connectx-4 2-Ports QSFP28 100GbE EDR IB PCI Express 3.0 x16 Gigabit Ethernet Network Adapter
SKU: 540-BBOB
Price: $286.32
Dell DMGV0 Connectx-4 2-Ports QSFP28 100GbE EDR IB PCI Express 3.0 x16 Gigabit Ethernet Network Adapter
SKU: DMGV0
Price: $286.32
Dell 068F2 Connectx-4 2-Ports QSFP28 100GbE EDR IB PCI Express 3.0 x16 Gigabit Ethernet Network Adapter
SKU: 068F2
Price: $286.32
Dell 540-BBNZ Connectx-4 2-Ports QSFP28 100GbE EDR IB PCI Express 3.0 x16 Gigabit Ethernet Network Adapter
SKU: 540-BBNZ
Price: $286.32
Dell 6XJXK ConnectX-6 Lx 2x Ports 10/25GbE SFP28 PCI Express Low Profile Network Adapter
SKU: 6XJXK
Price: $355.79
Dell PJRF1 Connectx-5 2-Ports 25Gb/s SFP28 PCI Express 3.0 x16 Low Profile Network Adapter
SKU: PJRF1
Price: $517.89
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.