{"product_id":"rambocables-om4-lc-lc-duplex-fiber-patch-cables-40m-2-pack-50-125µm-mmf-lszh-low-insertion-loss","title":"RamboCables OM4 LC‑LC Duplex Fiber Patch Cables 40m (2‑pack) — 50\/125µm MMF, LSZH, Low Insertion Loss","description":"\u003cp\u003e\u003cstrong\u003eRamboCables 40m OM4 LC–LC duplex fiber patch cables are multimode, LSZH-jacketed cords designed for high-density 10G\/40G\/100G network links and data-center patching.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese two 40-meter (130 ft) OM4 multimode patch cables use 50\/125µm fiber with LC connectors on both ends, delivering low insertion loss and controlled return loss for reliable short-to-medium reach optical links. Built with LSZH jackets and zirconia ferrules, the pair supports common transceivers (SFP+, QSFP+, SR variants) and is tailored to high-density racks, telecom rooms, and enterprise fiber panels.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these OM4 LC–LC cables improve network performance?\u003c\/h3\u003e\n\u003cp\u003eOM4 fiber offers higher modal bandwidth and longer reach compared with OM3 for the same connector type, making it well suited for 10G, 40G and certain 100G short-range applications. Low insertion loss and ≥30 dB return loss help maintain signal integrity through patching points.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e4700 MHz·km modal bandwidth at 850 nm for extended reach\u003c\/li\u003e\n  \u003cli\u003eInsertion loss ≤ 0.3 dB per connector for minimal attenuation\u003c\/li\u003e\n  \u003cli\u003eReturn loss ≥ 30 dB to reduce reflections\u003c\/li\u003e\n  \u003cli\u003eCompatible with SFP+\/QSFP+ and SR transceivers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat distances can I expect for 10G, 40G and 100G over OM4?\u003c\/h3\u003e\n\u003cp\u003eOM4 multimode fibers support considerably longer spans than lower-grade multimode cables at the same wavelength. Expect hundreds of meters for typical Ethernet multimode short-range connections, depending on transceiver types.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e10 GbE up to approximately 400 meters at 850 nm\u003c\/li\u003e\n  \u003cli\u003e40 GbE up to approximately 350 meters at 850 nm\u003c\/li\u003e\n  \u003cli\u003e100 GbE up to approximately 125 meters at 850 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat physical features and testing standards ensure reliability?\u003c\/h3\u003e\n\u003cp\u003eRamboCables builds these duplex cords with a 2.0 mm cable diameter, a low-smoke zero-halogen (LSZH) outer jacket for safer indoor environments, and zirconia ceramic ferrules for consistent connector geometry. Each cable undergoes inspection to meet common EIA\/TIA optical interface expectations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e50\/125 µm core\/cladding multimode construction\u003c\/li\u003e\n  \u003cli\u003e2.0 mm jacket diameter with 7.5 mm bend radius tolerance\u003c\/li\u003e\n  \u003cli\u003eLSZH outer jacket for reduced smoke\/toxic emissions\u003c\/li\u003e\n  \u003cli\u003e100% inspection for insertion loss and endface quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does buying the 2-pack help installations and inventory?\u003c\/h3\u003e\n\u003cp\u003ePurchasing two identical OM4 LC–LC patch cords simplifies purchasing, reduces per-unit cost, and ensures matched performance for duplex runs. The matched set is convenient for redundant links, parallel paths, or stocking spare cables for fast swaps.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo identical 40 m cords in one package for matched runs\u003c\/li\u003e\n  \u003cli\u003eCost-effective compared with single-cable purchases\u003c\/li\u003e\n  \u003cli\u003eConvenient for redundant or mirrored connections\u003c\/li\u003e\n  \u003cli\u003eSaves rack space with slim 2.0 mm duplex assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Network engineers, data-center operators, telecom technicians, and IT teams seeking reliable multimode patching for 10G\/40G\/100G short-reach links will benefit from these RamboCables OM4 LC–LC duplex cords. They suit high-density cabinets, patch panels, and environments where low-smoke materials and predictable optical performance are required.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these cables compatible with SFP+ and QSFP+ modules?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The OM4 LC–LC duplex cables are designed for SFP+, QSFP+ and other SR multimode transceivers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What safety rating does the jacket have for indoor use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The outer jacket is LSZH (low-smoke zero-halogen), suitable for indoor environments requiring reduced toxic emissions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"RamboCables","offers":[{"title":"Default Title","offer_id":48444434088093,"sku":"B0FXWYHHN6","price":144.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/rambocables-front-packaging-40m-om4-lc-lc.jpg?v=1781543905","url":"https:\/\/nexoltic.com\/products\/rambocables-om4-lc-lc-duplex-fiber-patch-cables-40m-2-pack-50-125%c2%b5m-mmf-lszh-low-insertion-loss","provider":"Nexoltic","version":"1.0","type":"link"}