100G QSFP28 ER4L 4x 25G NRZ QSFP-100G-ER4L-S 1310nm 40km Duplex LC/UPC Module, Cisco

The 100G QSFP28 ER4L 4x 25G NRZ QSFP-100G-ER4L-S 1310nm 40km Duplex LC/UPC Module, Cisco is a hot-pluggable QSFP28 transceiver rated at 103.125Gbps (4x 25.78Gbps). Using a Duplex LC/UPC optical interface over SMF at 1310nm, it covers transmission distances up to 40km. Compliance with QSFP28 MSA, SFF-8636, IEEE 802.3bm, CAUI-4, together with integrated diagnostic monitoring, makes it a dependable choice for 100G Ethernet, data center interconnect and 5G transport networks.

Product Highlights

• QSFP28 form factor, 103.125Gbps (4x 25.78Gbps) data rate
• Wavelength: 1310nm
• Connector: Duplex LC/UPC
• Reach: up to 40km
• Fiber media: SMF
• DDM/DOM: Supported

The 100G QSFP28 ER4L 4x 25G NRZ QSFP-100G-ER4L-S 1310nm 40km Duplex LC/UPC Module, Cisco is used in 100G Ethernet, data center interconnect and 5G transport networks, where it provides a 103.125Gbps (4x 25.78Gbps) link over SMF up to 40km. The Duplex LC/UPC interface and 1310nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. It is interoperable with Cisco platforms and replaces the Cisco part QSFP-100G-ER4L-S directly. The link runs 4x 25G-NRZ modulation, which keeps it aligned with current 100G switch silicon.

Compliance: QSFP28 MSA, SFF-8636, IEEE 802.3bm, CAUI-4. For projects standardized on Cisco hardware, this product replaces the QSFP-100G-ER4L-S 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-ER4L-100G. 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.

Goods are normally sent by courier such as DHL, UPS, FedEx, TNT or EMS; air and sea freight are also available on request. Commonly used items are kept in stock for immediate shipment, and out-of-stock items are usually delivered within a few working days. We can also ship on your courier account or hand goods to your appointed forwarder.

From incoming component inspection to final burn-in, quality is controlled at each step of production. Finished units are verified on real networking equipment in our compatibility lab, and test records are kept per batch so that any field question can be traced back quickly.

Transceivers and cables are individually protected against static and dust, then consolidated into sturdy cartons suitable for international courier shipment. For larger orders we shrink-wrap and strap cartons onto pallets. Tell us your warehouse or retail requirements and we will pack accordingly.

Our product line has grown with the industry for three decades, from GBIC-era modules to today's 800G and 1.6T interconnects. If the exact configuration you need is not listed, we can usually build it: custom lengths, mixed connector breakouts, OEM branding and project-specific firmware coding are all supported.