Replacement for 3CB9LF36R: Drop-In Alternatives We Stock
Looking for a replacement for the 3CB9LF36R (3CB9LF36R - 3Com CoreBuilder 4007 36-Port 10/100Base-TX Fast Ethernet Switch Module)? Pro Disk Network ships 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 3CB9LF36R
| SKU | 3CB9LF36R |
|---|---|
| Product | 3CB9LF36R - 3Com CoreBuilder 4007 36-Port 10/100Base-TX Fast Ethernet Switch Module |
| Current price | $171.92 |
| Stock status | In Stock |
| Detail page | View 3CB9LF36R › |
Drop-in replacements for 3CB9LF36R
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.
J9536-61101 - HP Expansion Module - Ethernet, Fast Ethernet, Gigabit Ethernet - 10base-t, 100base-tx, 1000base-t - 20 Ports + 2 X Sfp+
SKU: J9536-61101
Price: $194.74
G636F - Dell PowerConnect 3524P 24 x Ports 10/100Base-T PoE + 2 x Ports Shared SFP + 2 x Ports 10/100/1000Base-T Fast Ethernet Manageable Stackable Ethernet Switch
SKU: G636F
Price: $480.21
0G636F - Dell PowerConnect 3524P 24 x Ports 10/100Base-T PoE + 2 x Ports Shared SFP + 2 x Ports 10/100/1000Base-T Fast Ethernet Manageable Stackable Ethernet Switch
SKU: 0G636F
Price: $480.21
MSX1036B-1SFS - Mellanox 36-Port 40GBE 10 Gigabit Ethernet 1U Rack-Mountable Ethernet Switch
SKU: MSX1036B-1SFS
Price: $1,626.32
138604-B21 - HP Nc3135 PCI Dual Port 10base T/100base Tx Fast Ethernet Network Interface Card 64-bit 66MHz for ProLiant DL360/DL380
SKU: 138604-B21
Price: $173.68
010556-001 - HP Nc3135 PCI Dual Port 10base T/100base Tx Fast Ethernet Network Interface Card 64-bit 66MHz for ProLiant DL360/DL380
SKU: 010556-001
Price: $400.36
JG303B - HP 3600-24-SFP v2 EI 24 x Ports 10/100Base-T + 4 x SFP + 2 x Shared Layer-4 Managed Fast Ethernet Network Switch
SKU: JG303B
Price: $113.68
223-5536 - Dell PowerConnect 3500 Series 3548 48 x Ports 10/100Base-T + 2 x Ports Gigabit SFP + 2 x Ports 10/100/1000Base-T Fast Ethernet Rack-Mountable 1U Stackable Layer 3 Managed Network Switch
SKU: 223-5536
Price: $131.58
JG299A - HP FlexNetwork 3600-24 v2 EI 24 x Ports 10/100Base-TX + 4 x SFP Layer-3 Managed Fast Ethernet Network Switch
SKU: JG299A
Price: $208.42
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.