Replacement for 740-031981: Drop-In Alternatives We Stock
Looking for a replacement for the 740-031981 (740-031981 - Juniper 10GBase-LR 1310nm SFP+ Transceiver Module)? Pro Disk Network ships Juniper 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 740-031981
| SKU | 740-031981 |
|---|---|
| Product | 740-031981 - Juniper 10GBase-LR 1310nm SFP+ Transceiver Module |
| Current price | $168.42 |
| Stock status | In Stock |
| Detail page | View 740-031981 › |
Drop-in replacements for 740-031981
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.
740-011786 - Juniper 2.488Gbps OC-48/STM-16 IR Single-Mode Fibre 15km 1310nm LC Connector SFP Transceiver Module
SKU: 740-011786
Price: $107.96
740-013170 - Juniper 10Gbps 10GBase-LR XENPAK 1310nm 10km Transceiver Module
SKU: 740-013170
Price: $112.62
740-011785 - Juniper 2.488Gbps OC-48/STM-16 Single-Mode Fibre 2km 1310nm LC Connector SFP Transceiver Module
SKU: 740-011785
Price: $168.78
740-011616 - Juniper OC-12 Single-Mode 1310nm 15km SFP Transceiver Module
SKU: 740-011616
Price: $439.78
740-043832 - Juniper 1200-Watts Power Supply for Juniper EX4500 Ethernet Switches
SKU: 740-043832
Price: $614.04
740-011571 - Juniper 10Gbps 10GBase-SR XFP 850nm 300m Transceiver Module
SKU: 740-011571
Price: $71.58
740-007326 - Juniper 1Gbps 1000Base-SX Multi-Mode Fiber 550m 850nm LC Duplex Connector SFP Transceiver Module
SKU: 740-007326
Price: $92.59
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.