Replacement for GLC-FE-100BX-D120: Drop-In Alternatives We Stock
Looking for a replacement for the GLC-FE-100BX-D120 (GLC-FE-100BX-D120 - Cisco 100BASE-BX SFP 1550TX/1310RX-120km 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-D120
| SKU | GLC-FE-100BX-D120 |
|---|---|
| Product | GLC-FE-100BX-D120 - Cisco 100BASE-BX SFP 1550TX/1310RX-120km Transceiver Module |
| Stock status | In Stock |
| Detail page | View GLC-FE-100BX-D120 › |
Drop-in replacements for GLC-FE-100BX-D120
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.
CWDM-SFP-1550-120KM - Cisco 1Gbps 1000Base-CWDM Fibre Channel Single-mode Fiber 120km 1550nm Duplex LC Connector SFP Transceiver Module
SKU: CWDM-SFP-1550-120KM
Price: $598.36
DWDM-SFP-5575-120KM - Cisco 1Gbps 1000Base-DWDM Single-mode Fiber 120km 1555.75nm Duplex LC Connector SFP Transceiver Module
SKU: DWDM-SFP-5575-120KM
Price: $1,070.49
X2-10GB-ZR-120KM - Cisco 10Gbps 10GBase-ZR Single-Mode Fibre 120km 1550nm Duplex SC Connector X2 Transceiver Module
SKU: X2-10GB-ZR-120KM
Price: $1,724.57
10-1996-01 - Cisco 155Mb/s OC-3/STM-1 CWDM Single-Mode Fiber 120km 1470nm LC Connector SFP Transceiver Module
SKU: 10-1996-01
Price: $187.18
10-2000-01 - Cisco 155Mb/s OC-3/STM-1 CWDM Single-Mode Fiber 120km 1530nm LC Connector SFP Transceiver Module
SKU: 10-2000-01
Price: $243.74
10-2002-01 - Cisco 155Mb/s OC-3/STM-1 CWDM Single-Mode Fiber 120km 1570nm LC Connector SFP Transceiver Module
SKU: 10-2002-01
Price: $278.80
10-1997-01 - Cisco 155Mb/s OC-3/STM-1 CWDM Single-Mode Fiber 120km 1610nm LC Connector SFP Transceiver Module
SKU: 10-1997-01
Price: $278.80
Cisco ONS-SE-155-1570 Single-mode 155Mbps 100Base-CWDM Fiber 120km 1570nm Duplex LC Connector SFP Transceiver Module
SKU: ONS-SE-155-1570
Price: $386.84
10-1998-01 - Cisco 155Mb/s OC-3/STM-1 CWDM Single-Mode Fiber 120km 1490nm LC Connector SFP Transceiver Module
SKU: 10-1998-01
Price: $651.74
10-2001-01 - Cisco 155Mb/s OC-3/STM-1 CWDM Single-Mode Fiber 120km 1550nm LC Connector SFP Transceiver Module
SKU: 10-2001-01
Price: $669.58
Cisco ONS-SE-155-1550 Single-mode 155Mbps 100Base-CWDM Fiber 120km 1550nm Duplex LC Connector SFP Transceiver Module
SKU: ONS-SE-155-1550
Price: $736.84
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.