{"product_id":"cisco-qsfp-40g-sr-bd-40gbase-sr-bidi-qsfp-transceiver-duplex-lc-mmf-refurbished","title":"Cisco QSFP-40G-SR-BD 40GBASE-SR BiDi QSFP+ Transceiver — Duplex LC MMF, Refurbished","description":"\u003cp\u003e\u003cstrong\u003eCisco 40G BiDi — duplex LC MMF, not MPO SR4\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCisco QSFP-40G-SR-BD — 40GBASE-SR BiDi QSFP+ transceiver, refurbished\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCisco Part Number:\u003c\/strong\u003e QSFP-40G-SR-BD\u003cbr\u003e\u003cstrong\u003eCommon aliases:\u003c\/strong\u003e 40G BiDi · QSFP-40G-SRBD (vendor spelling varies)\u003cbr\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e Hot-pluggable QSFP+, 40GbE bidirectional over duplex multimode fiber, LC connector\u003c\/p\u003e\n\u003cp\u003eThis is the \u003cstrong\u003eCisco\u003c\/strong\u003e 40G BiDi module — two ~20G wavelengths on a single duplex LC MMF pair so you can reuse existing 10G duplex plant for 40G. It is a \u003cstrong\u003eseparate listing\u003c\/strong\u003e from our Arista QSFP-40G-SRBD refurbished stock. Do not assume Cisco and Arista BiDi coding are interchangeable without checking your platform matrix.\u003c\/p\u003e\n\u003cp\u003eRefurbished, tested, Cisco-coded. Lifetime warranty from Resilient Tec.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhich One Do I Need?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eGoing into\u003c\/th\u003e\n\u003cth\u003eYou need\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCisco 40G QSFP+ port, duplex OM3\/OM4 LC plant (upgrade from 10G SR)\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eCisco QSFP-40G-SR-BD\u003c\/strong\u003e — this product\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArista-coded 40G BiDi specifically\u003c\/td\u003e\n\u003ctd\u003e\n\u003ca href=\"\/products\/arista-qsfp-40g-srbd-xvr-10066-20-40gbase-bidi-qsfp-transceiver-40gbe-bi-directional-over-duplex-mmf-150m\"\u003eArista QSFP-40G-SRBD\u003c\/a\u003e — separate listing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParallel MPO multimode plant (8 fibers)\u003c\/td\u003e\n\u003ctd\u003e\n\u003ca href=\"\/products\/finisar-qsfp-40g-sr4-40gbase-sr4-qsfp-transceiver-new-open-box\"\u003eFinisar QSFP-40G-SR4\u003c\/a\u003e or \u003ca href=\"\/products\/cisco-qsfp-40g-sr4-40gbase-sr4-qsfp-transceiver-new-copy\"\u003eCisco QSFP-40G-SR4\u003c\/a\u003e — \u003cstrong\u003enot BiDi\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDual-rate 40\/100G BiDi on QSFP28\u003c\/td\u003e\n\u003ctd\u003e\n\u003ca href=\"\/products\/qsfp-40-100-srbd-cisco-dual-rate-40-100gbase-sr-bidi-qsfp28-transceiver-refurb\"\u003eQSFP-40\/100-SRBD\u003c\/a\u003e — different form \/ rate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eBiDi vs SR4 is the first fork.\u003c\/strong\u003e BiDi = duplex LC (2 fibers). SR4 = MPO-12 (8 fibers used). If you still have duplex LC trunks from 10G, BiDi is usually the path that avoids a fiber plant rip-and-replace.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCisco Part Number\u003c\/td\u003e\n\u003ctd\u003eQSFP-40G-SR-BD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003eQSFP+ (hot-pluggable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Standard\u003c\/td\u003e\n\u003ctd\u003e40GBASE-SR BiDi (duplex MMF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Rate\u003c\/td\u003e\n\u003ctd\u003e40 Gbps (2 × ~20 Gbps bidirectional channels)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelengths\u003c\/td\u003e\n\u003ctd\u003e832–918 nm class (typically ~850 nm and ~900 nm opposite directions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003eDuplex LC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber \/ Reach\u003c\/td\u003e\n\u003ctd\u003e100 m OM3 · 150 m OM4\/OM5 (Cisco datasheet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDOM \/ DDM\u003c\/td\u003e\n\u003ctd\u003eSupported on typical modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e~3.5 W max class\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to 70°C (commercial)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandards\u003c\/td\u003e\n\u003ctd\u003eQSFP+ MSA, Cisco 40G BiDi, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLifetime, backed by Resilient Tec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eRefurbished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eNote on Reach: Why BiDi Quotes Both 100 m and 150 m\u003c\/h2\u003e\n\u003cp\u003eCisco rates \u003cstrong\u003eQSFP-40G-SR-BD\u003c\/strong\u003e at \u003cstrong\u003e100 m on OM3\u003c\/strong\u003e and \u003cstrong\u003e150 m on OM4\/OM5\u003c\/strong\u003e. That is the design envelope for duplex MMF BiDi — not SR4 parallel reach, and not a license to ignore connector loss. Extra LC patch panels still cost budget.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eGood to Know\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis listing is Cisco QSFP-40G-SR-BD.\u003c\/strong\u003e Our Arista QSFP-40G-SRBD listing is a different SKU and coding path — we intentionally keep them separate.\u003c\/li\u003e\n\u003cli\u003eBiDi lets you reuse \u003cstrong\u003eduplex LC\u003c\/strong\u003e 10G MMF for 40G. It does not turn an MPO SR4 trunk into BiDi.\u003c\/li\u003e\n\u003cli\u003eBoth ends of the link need BiDi modules (or a supported BiDi peer). Mixing BiDi with SR4 will not work.\u003c\/li\u003e\n\u003cli\u003eRefurbished = previously deployed Cisco-coded hardware, tested and re-warranted by us.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eQuick Checklist — Is This the Right Module?\u003c\/h2\u003e\n\u003cp\u003eYou have a \u003cstrong\u003eCisco\u003c\/strong\u003e (or Cisco-coded) \u003cstrong\u003e40G QSFP+\u003c\/strong\u003e port. Your fiber is \u003cstrong\u003eduplex OM3\/OM4 with LC\u003c\/strong\u003e. You want to run \u003cstrong\u003e40G BiDi\u003c\/strong\u003e, not SR4. Your BOM says \u003cstrong\u003eQSFP-40G-SR-BD\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eAvailability\u003c\/h2\u003e\n\u003cp style=\"border-left: 3px solid #1e8f5e; background: #f7f8fa; padding: 10px 14px; margin: 14px 0;\"\u003e\u003cstrong\u003eIn stock at Resilient Tec · Ships from Knoxville, TN.\u003c\/strong\u003e\u003cbr\u003eDeep BiDi spare stock — tell us Cisco vs Arista coding when you request a kit quote. \u003ca href=\"\/pages\/request-a-quote\"\u003e\u003cstrong\u003eRequest a quote →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e lifetime, \u003ca href=\"\/pages\/lifetime-warranty\"\u003ebacked by Resilient Tec\u003c\/a\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eYou Might Also Need\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/arista-qsfp-40g-srbd-xvr-10066-20-40gbase-bidi-qsfp-transceiver-40gbe-bi-directional-over-duplex-mmf-150m\"\u003eArista QSFP-40G-SRBD — Refurbished\u003c\/a\u003e — Arista-coded BiDi sibling\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/finisar-qsfp-40g-sr4-40gbase-sr4-qsfp-transceiver-new-open-box\"\u003eFinisar QSFP-40G-SR4 — New Open Box\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/cisco-qsfp-40g-sr4-40gbase-sr4-qsfp-transceiver-new-copy\"\u003eCisco QSFP-40G-SR4 — Refurbished\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/product-guides\"\u003eProduct guides\u003c\/a\u003e · \u003ca href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eRelated Guides\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/lifetime-warranty\"\u003eLifetime warranty — how Resilient Tec backs what we sell\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/request-a-quote\"\u003eRequest a quote for 40G BiDi fills and spare kits\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/product-guides\"\u003eProduct guides\u003c\/a\u003e\u003c\/p\u003e\n","brand":"Cisco","offers":[{"title":"Default Title","offer_id":48070078464161,"sku":"QSFP-40G-SR-BD-R","price":598.5,"currency_code":"BRL","in_stock":true}],"url":"https:\/\/www.foxti.com.br\/products\/cisco-qsfp-40g-sr-bd-40gbase-sr-bidi-qsfp-transceiver-duplex-lc-mmf-refurbished","provider":"FoxTI","version":"1.0","type":"link"}