{"product_id":"cisco-qsfp-40g-sr4-40gbase-sr4-qsfp-transceiver-refurbished","title":"Cisco QSFP-40G-SR4 40GBASE-SR4 QSFP+ Transceiver, Refurbished","description":"\u003cp\u003e\u003cstrong\u003eQuick answer:\u003c\/strong\u003e The Cisco QSFP-40G-SR4 is a 40GBASE-SR4 QSFP+ optic that runs 40 Gigabit Ethernet over multimode fiber at 850 nm, up to 100 m on OM3 and 150 m on OM4, through a single MPO-12 connector. This listing is a genuine Cisco module. Resilient Tec sells it refurbished, with a lifetime warranty and free US shipping from Knoxville, TN.\u003c\/p\u003e\n\u003cp\u003eCondition: Refurbished\u003c\/p\u003e\n\u003cp dir=\"ltr\" data-pm-slice=\"1 1 []\"\u003eThe Cisco QSFP-40G-SR4 is a hot-swappable, 40GBASE-SR4 QSFP+ transceiver designed for high-speed Ethernet connectivity over multimode fiber. Featuring an MPO connector, it supports 40 Gigabit Ethernet for high-density, short-range connections, making it ideal for data center spine-leaf architectures and aggregation links.\u003c\/p\u003e\n\u003ch2 dir=\"ltr\" data-pm-slice=\"1 3 []\"\u003eKey Specifications\u003c\/h2\u003e\n\u003cul class=\"tight\" data-tight=\"true\" dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eData Rate\u003c\/strong\u003e: 40Gbps (4x10Gbps lanes)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eInterface\u003c\/strong\u003e: MPO-12 connector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eCable Type\u003c\/strong\u003e: Multimode fiber (MMF)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWavelength\u003c\/strong\u003e: 850nm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eDistance\u003c\/strong\u003e: Up to 100m on OM3 MMF, 150m on OM4 MMF\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e: 1.5W\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: Commercial range, 0°C to 70°C (32°F to 158°F)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eForm Factor\u003c\/strong\u003e: QSFP+\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e: Supports a wide range of Cisco switches and routers (e.g., Nexus 9000, Catalyst 9500 series)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eStandards\u003c\/strong\u003e: IEEE 802.3ba, QSFP+ MSA, RoHS compliant\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat cable does it need?\u003c\/strong\u003e\u003cbr\u003eA 12-fiber MPO trunk with flat (UPC) endfaces on multimode OM3 or OM4 fiber, female on both ends. Angle-polished (APC) MPO cables, such as those built for NVIDIA NDR optics, will not mate with it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it break out to 4 x 10G?\u003c\/strong\u003e\u003cbr\u003eYes, on platforms that support breakout: with an MPO to 4 x duplex LC breakout cable, one QSFP-40G-SR4 can connect to four 10GBASE-SR SFP+ ports. Check that your switch port supports breakout mode.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I reuse my existing duplex LC fiber for 40G?\u003c\/strong\u003e\u003cbr\u003eNot with SR4, which needs MPO. A BiDi optic such as the QSFP-40\/100-SRBD runs over existing duplex LC multimode fiber.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat warranty and shipping come with it?\u003c\/strong\u003e\u003cbr\u003eResilient Tec's lifetime warranty. US standard shipping is free with no minimum, and orders typically arrive in 3 to 5 days.\u003c\/p\u003e\n\u003ch3\u003eYou Might Also Need\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/products\/cisco-qsfp-40g-sr4-40gbase-sr4-qsfp-transceiver-new\"\u003eCisco QSFP-40G-SR4, new\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"\/products\/qsfp-40-100-srbd-cisco-dual-rate-40-100gbase-sr-bidi-qsfp28-transceiver-refurbished\"\u003eCisco QSFP-40\/100-SRBD (duplex LC BiDi)\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"\/products\/cisco-qsfp-h40g-cu1m-40gbase-cr4-qsfp-direct-attach-cable-new\"\u003eCisco QSFP-H40G-CU1M 40G DAC\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"\/collections\/fiber\"\u003eAll fiber cables\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"\/collections\/transceivers\"\u003eAll transceivers\u003c\/a\u003e\u003c\/p\u003e\n","brand":"Cisco","offers":[{"title":"Default Title","offer_id":47923350175844,"sku":"QSFP-40G-SR4-R","price":31.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/QSFP-40G-SR4.jpg?v=1771295952","url":"https:\/\/resilient-tec.com\/products\/cisco-qsfp-40g-sr4-40gbase-sr4-qsfp-transceiver-refurbished","provider":"Resilient Tec","version":"1.0","type":"link"}