QSFP-40G-CSR4 | 40G QSFP+ SR4 300m Transceiver
40G QSFP+ SR4 300m Transceiver with 29 exact SKU options. Confirm the host, port and firmware before quotation.
Optical Transceivers
Catalog reference: Cisco Coding Target QSFP-40G-ER4 Compatible 40GBASE-ER4 QSFP 1310nm 40km SMF DOM LC Duplex Optical Transceiver Module
The part numbers on this page identify the requested coding target. Confirm the exact host model, port and firmware for the selected SKU.
QSFP-40G-ER4 optical transceiver features large capacity and low cost. QSFP+ optical modules meet international standards for quality control and provide high-density and low-power 40G Ethernet connectivity options for data centers, enterprise networks, and telecom operators.
Search and select a SKU to update the exact title, description, model and option attributes before sending an RFQ.
40GBASE-ER4 QSFP+ 1310nm 40km SMF Module for Cisco
QSFP-40G-ER4 optical transceiver features large capacity and low cost. QSFP+ optical modules meet international standards for quality control and provide high-density and low-power 40G Ethernet connectivity options for data centers, enterprise networks, and telecom operators.
Use this selection as the requested coding target. Final compatibility still requires the host model, port type and firmware version.
Product brand: SUNFULL. Third-party names identify requested compatibility or coding targets only and do not imply affiliation, endorsement or original-equipment status.
Engineering record
Family-level values from the collected technical record. Confirm the selected SKU and required evidence in the quotation.
Technical detail
Review connector, construction, routing and handling details that apply to the selected family and exact SKU.
optimizes PCB routing and case thermal conductivity to reduce EMI and supply voltage of functional circuits, ensuring optimal performance.

has a full range of professional test equipment for testing various parameters of products to ensure high performance and quality of optical transmission stability.

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Compare alternatives
Compare shared part-number references and technical traits, then confirm the exact SKU, host and route requirements for your project.
40G QSFP+ SR4 300m Transceiver with 29 exact SKU options. Confirm the host, port and firmware before quotation.
40G QSFP+ LR4 10km Transceiver with 30 exact SKU options. Confirm the host, port and firmware before quotation.
40G QSFP+ LR4L 2km Transceiver with 23 exact SKU options. Confirm the host, port and firmware before quotation.
40G QSFP+ Transceiver with 26 exact SKU options. Confirm the host, port and firmware before quotation.
40G QSFP+ 1.4km Transceiver with 26 exact SKU options. Confirm the host, port and firmware before quotation.
40G QSFP+ 10km Transceiver with 26 exact SKU options. Confirm the host, port and firmware before quotation.
B2B inquiry desk
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