Cisco QSFP-40G-SR-BD 40GBASE-SR BiDi QSFP Transceiver – Open Box

The Cisco QSFP-40G-SR-BD is a high-performance 40GBASE-SR Bi-Directional optical transceiver designed for duplex multimode fiber. With support for short-reach applications up to 150 meters, it enables cost-effective and efficient 40G deployments in data centers and enterprise networks without the need for complex cabling systems.

This module delivers stable 40GbE connectivity using a bi-directional design that allows transmission on a single pair of multimode fibers. Its compact QSFP+ form factor makes it easy to deploy in environments that require high density, reliability, and standards-compliant performance.

✔ Key Features & Benefits

✔ Bi-Directional Technology – Reduces cabling requirements by enabling duplex transmission over a single pair of multimode fibers.
✔ High-Speed 40GbE Connectivity – Provides fast and reliable data transfer for enterprise and data center applications.
✔ Cost-Effective Scaling – Supports existing MMF infrastructure, eliminating the need for expensive new cabling.
✔ Compact QSFP+ Design – Optimized for high-density environments requiring multiple 40G connections.
✔ Open Box Assurance – Device has no prior usage, only packaging opened; tested and verified as fully functional.

✔ Ideal Uses

✔ Data centers consolidating 40G backbone links.
✔ Enterprise networks requiring fast aggregation performance.
✔ Cloud providers scaling infrastructure with short-reach optics.
✔ Campus or metro networks upgrading from 10G to 40G.

✔ Specifications

✔ Condition: Open Box – New device with no signs of use. Packaging may be opened. Device has been tested and is 100% functional.
✔ Brand: Cisco
✔ Model: QSFP-40G-SR-BD
✔ Type: 40GBASE-SR-BiDi QSFP Transceiver
✔ Form Factor: QSFP+
✔ Dimensions: 13.5 × 18.4 × 72.4 mm
✔ Wavelength: 832–918 nm
✔ Fiber Type: Multimode Fiber (MMF)
✔ Core Size: 50 µm
✔ Modal Bandwidth: 500 (OM2), 2000 (OM3), 4700 (OM4) MHz-km
✔ Reach: 30 m (OM2), 100 m (OM3), 150 m (OM4)
✔ Connector: Duplex MMF
✔ Data Rate: 40 Gbps
✔ Power Consumption: 3.5 W
✔ Transmit Power: -4 to +5 dBm per lane
✔ Receive Power: -6 to +5 dBm per lane
✔ Temperature Range (Operating): +10°C to +70°C
✔ Temperature Range (Storage): -40°C to +85°C
✔ Standards: GR-20-CORE, GR-326-CORE, GR-1435-CORE, IEEE 802.3ba, IEEE 802.3ae, QSFP+ MSA SFF-8436, SFP+ MSA SFF-8431/8461, RoHS 6
✔ Safety: UL E116441 compliant cable jacket, ELV compliant copper cables
✔ Warranty: 3 Month Carry-in Warranty
✔ What’s in the Box: 1 × Cisco QSFP-40G-SR-BD Transceiver Module