Replacement for J4121A-ABA: Drop-In Alternatives We Stock
Looking for a replacement for the J4121A-ABA (HP J4121A#ABA ProCurve 4000M 40xPort 10/100Base-TX 5xExpansion slot Fast Ethernet Network Modular Chassis)? 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 J4121A-ABA
| SKU | J4121A-ABA |
|---|---|
| Product | HP J4121A#ABA ProCurve 4000M 40xPort 10/100Base-TX 5xExpansion slot Fast Ethernet Network Modular Chassis |
| Current price | $296.30 |
| Stock status | In Stock |
| Detail page | View J4121A-ABA › |
Drop-in replacements for J4121A-ABA
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.
J4121-61001 - HP ProCurve 4000M 40xPort 10/100Base-TX 5xExpansion slot Fast Ethernet Network Modular Chassis
SKU: J4121-61001
Price: $194.74
J4121-69001 - HP ProCurve 4000M 40xPort 10/100Base-TX 5xExpansion slot Fast Ethernet Network Modular Chassis
SKU: J4121-69001
Price: $194.74
J4121A - HP ProCurve 4000M 40xPort 10/100Base-TX 5xExpansion slot Fast Ethernet Network Modular Chassis
SKU: J4121A
Price: $194.74
J4121-61004 - HP ProCurve 4000M 40xPort 10/100Base-TX 5xExpansion slot Fast Ethernet Network Modular Chassis
SKU: J4121-61004
Price: $296.30
J4112A - HP ProCurve Switch 4000M 4 x Ports 10/100Base-FX Fast Ethernet Network Switch Expansion Module
SKU: J4112A
Price: $170.53
J4112-69001 - HP ProCurve Switch 4000M 4 x Ports 10/100Base-FX Fast Ethernet Network Switch Expansion Module
SKU: J4112-69001
Price: $170.53
J4112-61001 - HP ProCurve Switch 4000M 4 x Ports 10/100Base-FX Fast Ethernet Network Switch Expansion Module
SKU: J4112-61001
Price: $170.53
J4112-60001 - HP ProCurve Switch 4000M 4 x Ports 10/100Base-FX Fast Ethernet Network Switch Expansion Module
SKU: J4112-60001
Price: $170.53
J4112-80001 - HP ProCurve Switch 4000M 4 x Ports 10/100Base-FX Fast Ethernet Network Switch Expansion Module
SKU: J4112-80001
Price: $250.53
J8775B - HP ProCurve 4208vl-96G 96 x Ports 10/100Base-TX LAN + 4 x Expansion Slots Modular Fast Ethernet Network Switch Chassis
SKU: J8775B
Price: $2,349.47
J4121AR - HP ProCurve 4000m Managed Modular Switch 5 x Expansion Slot 40 x 10/100Base-TX LAN
SKU: J4121AR
Price: $194.74
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.