{"product_id":"cisco-qsfp40g-bidi-short-reach-transceiver-remanufactured","title":"Cisco Qsfp40G Bidi Short Reach Transceiver Remanufactured","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Cisco QSFP40G BiDi Short-reach Transceiver — a high-density, hot-swappable 40GBASE-X module engineered for data networking and optical networks. This BiDi transceiver delivers reliable 40 Gbps performance over duplex multimode fiber, enabling efficient, scalable connectivity for data centers, enterprise campuses, and telecom edge deployments. Built for seamless integration with Cisco switches and select third-party devices, it maximizes cable efficiency, minimizes footprint, and supports rapid deployment without compromising reliability or uptime. Designed to meet the demands of modern networks, this transceiver ensures consistent, low-latency 40 Gigabit Ethernet over short-reach links, while reducing cabling complexity and patching labor in dense rack environments.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eHigh-density 40GBASE-X for scalable data center networks:\u003c\/b\u003e The QSFP40G BiDi transceiver enables compact, high-bandwidth connectivity in data centers and campus networks, delivering sustained 40 Gbps Ethernet over short-reach links with low latency and minimal packet loss. Its quad form-factor fits multiple ports per switch, helping you maximize port density and optimize rack space.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eBidirectional BiDi technology over duplex MMF:\u003c\/b\u003e This module uses bidirectional signaling over a single fiber pair, dramatically reducing fiber plant complexity. By leveraging two wavelengths on the same duplex multimode fiber, it preserves full-duplex performance while cutting fiber count and patch cord tangles, simplifying deployment and maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003e50 µm multimode fiber compatibility with LC duplex interface:\u003c\/b\u003e The transceiver is optimized for short-reach intra-data-center connectivity, pairing a 1 x LC duplex optical interface with 50 µm multimode fiber to deliver robust performance over standard MMF installations in data centers and enterprise facilities.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eHot-swappable QSFP form factor for uptime:\u003c\/b\u003e Plugging into compatible switches and routers without powering down the host device, this transceiver minimizes downtime and maximizes uptime in production environments, making it ideal for live-migration, maintenance windows, and phased network upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eWide compatibility and ease of integration:\u003c\/b\u003e Optimized for Cisco devices and select third-party platforms that support 40GBASE-X, enabling smooth operation in mixed-vendor environments and future-proofing your plan for gradual upgrades across the network.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical Details of Cisco QSFP40G BiDi Short-reach Transceiver\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eConnector:\u003c\/b\u003e 1 x LC duplex\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFiber Type:\u003c\/b\u003e Multi-mode optical fiber, 50 µm core\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eOperational Mode:\u003c\/b\u003e Bidirectional BiDi over duplex MMF\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eData Rate:\u003c\/b\u003e 40 Gbps (40 Gigabit Ethernet)\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eStandard:\u003c\/b\u003e 40GBASE-X family\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eForm Factor:\u003c\/b\u003e QSFP (Quad Small Form-factor Pluggable)\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDistance Capability:\u003c\/b\u003e Short-reach applications within data centers and campus networks\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eHot-swappable:\u003c\/b\u003e Yes, designed for field replacement without powering down the host device\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCompatibility:\u003c\/b\u003e Optimized for Cisco devices and select third-party systems that support 40GBASE-X\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ehow to install Cisco QSFP40G BiDi Short-reach Transceiver\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003ePower down the host device\u003c\/b\u003e only if required by your maintenance policy, and prepare the port for replacement or insertion.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVerify compatibility\u003c\/b\u003e that the destination switch or router supports 40GBASE-X BiDi transceivers and that the port is configured for 40G operation.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eRemove the existing module\u003c\/b\u003e from the QSFP port and handle the new transceiver by its edges to avoid touching the connector.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eInsert firmly\u003c\/b\u003e the Cisco QSFP40G BiDi Short-reach Transceiver into the QSFP port until it seats with a click, then secure any retention mechanisms if present.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eConnect the fiber pair\u003c\/b\u003e by attaching the LC duplex multimode fiber to the transceiver, ensuring proper polarity and alignment for transmit and receive paths.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePower up and configure\u003c\/b\u003e the device or revert to normal operation, then verify link status and negotiate the 40GBASE-X connection on both ends.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eValidate connectivity\u003c\/b\u003e by running basic tests such as ping, throughput checks, and link verification to confirm stable operation and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFrequently asked questions\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eQ: What is BiDi over duplex MMF?\u003c\/b\u003e A: Bidirectional (BiDi) technology uses two wavelengths on a single duplex multimode fiber pair to carry both transmit and receive signals, delivering full-duplex 40 Gbps performance over short-reach links while reducing fiber count and patching complexity.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eQ: Is the Cisco QSFP40G BiDi Short-reach Transceiver hot-swappable?\u003c\/b\u003e A: Yes. It is designed for field replacement without powering down the host device, helping minimize downtime during maintenance or upgrades when your network policy permits.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eQ: Which devices are compatible with this transceiver?\u003c\/b\u003e A: The module is optimized for Cisco devices and select third-party systems that support 40GBASE-X, enabling interoperability in mixed-vendor environments and easing gradual network upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eQ: What fiber and connector should I use?\u003c\/b\u003e A: The transceiver uses a 1 x LC duplex connection and is intended for 50 µm multimode fiber, making it suitable for short-reach intra-data-center deployments where standard MMF cabling is prevalent.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eQ: What performance and reliability benefits does BiDi provide?\u003c\/b\u003e A: BiDi over MMF reduces fiber plant complexity, lowers cable count, and maintains low latency and minimal packet loss for high-demand workloads typical of data centers, campuses, and telecom edge sites.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46747098611938,"sku":"5429073","price":385.42,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9510\/9090\/files\/175568679.jpg?v=1755205965","url":"https:\/\/pegasussonline.com\/products\/cisco-qsfp40g-bidi-short-reach-transceiver-remanufactured","provider":"PEGASUSS ","version":"1.0","type":"link"}