Replacement for GLC-FE-100BX-U20: Drop-In Alternatives We Stock
Looking for a replacement for the GLC-FE-100BX-U20 (GLC-FE-100BX-U20 - Cisco 100BASE-BX SFP 1310TX/1550RX-20km Transceiver Module)? Pro Disk Network ships Cisco 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 GLC-FE-100BX-U20
| SKU | GLC-FE-100BX-U20 |
|---|---|
| Product | GLC-FE-100BX-U20 - Cisco 100BASE-BX SFP 1310TX/1550RX-20km Transceiver Module |
| Stock status | In Stock |
| Detail page | View GLC-FE-100BX-U20 › |
Drop-in replacements for GLC-FE-100BX-U20
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.
GLC-BX-U-20KM - Cisco 1Gbps 1000Base-BXU Single-mode Fiber 1310nm TX/1490nm RX 20km SFP Transceiver Module
SKU: GLC-BX-U-20KM
Price: $114.36
SFP-10G-BXD-20KM - Cisco 10GBase-BX-D 1330TX / 1270RX 20km SFP+ Transceiver Module
SKU: SFP-10G-BXD-20KM
Price: $926.57
SFP-10G-BXU-20KM - Cisco 10GBase-BX-U 1270TX / 1330RX 20km SFP+ Transceiver Module
SKU: SFP-10G-BXU-20KM
Price: $926.57
X2-10GB-LR-20KM - Cisco 10Gbps 10GBase-LR Single-Mode Fiber 20km 1310nm Duplex SC Connector X2 Transceiver Module
SKU: X2-10GB-LR-20KM
Price: $306.68
XFP-10G-BX-D-20KM - Cisco 10GBase-BX-D 1330TX / 1270RX 20km XFP Transceiver Module
SKU: XFP-10G-BX-D-20KM
Price: $594.37
XFP-10G-BX-U-20KM - Cisco 10GBase-BX-U 1270TX / 1330RX 20km XFP Transceiver Module
SKU: XFP-10G-BX-U-20KM
Price: $594.37
GLC-LH-SM-20 - Cisco 1Gbps 1000Base-LX/LH Single-Mode Fiber 20km 1310nm Duplex LC Connector SFP Transceiver Module
SKU: GLC-LH-SM-20
Price: $105.71
GLC-BX-U20 - Cisco 1Gbps 1000Base-BX-U Bi-Directional 20km Single-mode Fiber 1310nm/1490nm SFP Transceiver
SKU: GLC-BX-U20
Price: $78.00
GLC-BX-D20 - Cisco 1Gbps 1000Base-BX-D Bi-Directional 20km Single-mode Fiber 1490nm/1310nm SFP Transceiver
SKU: GLC-BX-D20
Price: $414.86
SFP-GD-BX43 - Cisco 1Gbps 1000Base-BX-D 1490nmTX/1310nmRX 20km SFP Transceiver Module
SKU: SFP-GD-BX43
Price: $177.79
SFP-GPON-B-I - Cisco 20km 1310nm 1310nmRx/1490nmTx Duplex LC Single-Mode SFP (mini-GBIC) Transceiver Module
SKU: SFP-GPON-B-I
Price: $2,582.43
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.