Replacement for LE003A-R3: Drop-In Alternatives We Stock
Looking for a replacement for the LE003A-R3 (LE003A-R3 - Black Box Standard Thick Coax Transceiver 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 LE003A-R3
| SKU | LE003A-R3 |
|---|---|
| Product | LE003A-R3 - Black Box Standard Thick Coax Transceiver Module |
| Current price | $459.00 |
| Stock status | In Stock |
| Detail page | View LE003A-R3 › |
Drop-in replacements for LE003A-R3
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.
C6210-3040-TELUS - Transition Networks DS3-T3/E3 Coax To Fiber SFP Transceiver Module
SKU: C6210-3040-TELUS
Price: $857.16
Black LGB2126A Black Box LGB2126A LGB2000 Series 24 x Ports 1GBase-T + 2 x Ports SFP (mini-GBIC) Layer 2 1U Rack-Mountable Gigabit Ethernet Network Switch
SKU: LGB2126A
Price: $387.37
Black LB9215A Black Box LB9215A 8x Ports 100Base-FX Express Modular 1U Rack Mount Layer2 Ethernet Switch
SKU: LB9215A
Price: $1,147.37
Black LPB5052A Black Box LPB5052A LPB5000 48x Ports PoE+ 1GBase-T 4x Ports Combo SFP+ Layer 2+ Managed Rack-Mountable Gigabit Ethernet Network Switch
SKU: LPB5052A
Price: $2,815.79
Black LGB6050A Black Box LGB6050A 48x Ports 1GBase-T 4x Ports Shared SFP 1U Rack-mountable Layer 3 Managed Gigabit Ethernet Network Switch
SKU: LGB6050A
Price: $4,121.05
LFP401 - Black Box 155Mbps EXT DIAG Multi-mode Fiber 2km 850nm LC Connector SFP Transceiver Module
SKU: LFP401
Price: $119.59
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.