The 40G QSFP+ QSFP-40G-LR4-20 20km 1310nm Duplex LC/UPC Module, Cisco is a hot-pluggable QSFP+ transceiver rated at 41.2Gbps (4x 10.3Gbps). Using a Duplex LC optical interface over SMF at 1310nm, it covers transmission distances up to 20km. Compliance with QSFP+ MSA, SFF-8436, together with integrated diagnostic monitoring, makes it a dependable choice for 40G Ethernet data center and enterprise network environments.

Product Highlights

• QSFP+ form factor, 41.2Gbps (4x 10.3Gbps) data rate
• Wavelength: 1310nm
• Connector: Duplex LC
• Reach: up to 20km
• Fiber media: SMF
• Operating temperature: 0 to 70°C(32 to 158°F)

Built for 40G Ethernet data center and enterprise network environments, this QSFP+ module carries 41.2Gbps (4x 10.3Gbps) over SMF up to 20km per link. Digital diagnostics report transmit power, receive power and temperature in real time, which simplifies commissioning and ongoing maintenance. For networks standardized on Cisco hardware, it is a drop-in equivalent of the QSFP-40G-LR4-20.

Compliance: QSFP+ MSA, SFF-8436. For projects standardized on Cisco hardware, this product replaces the QSFP-40G-LR4-20 directly, with identical fit and function. Every unit's EEPROM coding and link behavior are verified on real host equipment in our lab, so what arrives at your site is ready to use.

Order this product as QSFP-ELR4-40G. Common models are stocked for fast dispatch. We can supply the module with neutral or customer-branded labels, and compatibility coding for a specific equipment vendor can be added at no extra process step.

Because we are the factory, customization is straightforward: non-standard lengths, different jacket materials, specific polarity or breakout wiring, and compatibility programming for particular switch brands are all routine work for us. Small trial orders are accepted so you can verify quality before scaling up.

Standard products are held in stock and usually ship within one to three working days. We dispatch worldwide by DHL, UPS, FedEx, TNT or EMS, and for bulk orders we arrange air or sea freight. Shipments can also be sent collect on your own courier account or delivered to your freight forwarder.

Production samples and every outgoing batch pass through bit-error-rate measurement, temperature verification and plug-in compatibility checks on mainstream switches and routers. Because we are the manufacturer, any issue found in testing is fed back to the production line immediately instead of being passed on to customers.

Default packaging is simple and protective: sealed bag, blister tray, export carton. For OEM customers we also offer white-label packing, custom printed boxes and per-unit labeling with your own part numbers, so the goods can go straight into your sales channel.