{"id":5393,"date":"2026-07-22T10:42:14","date_gmt":"2026-07-22T10:42:14","guid":{"rendered":"https:\/\/optics.carritech.com\/optical-transceivers\/uncategorized\/qsfp-40g-sr4-s\/"},"modified":"2026-07-22T12:16:26","modified_gmt":"2026-07-22T12:16:26","slug":"qsfp-40g-sr4-s","status":"publish","type":"product","link":"https:\/\/optics.carritech.com\/it\/optical-transceivers\/optical-transceivers\/qsfp\/40g-qsfp\/qsfp-40g-sr4-s\/","title":{"rendered":"QSFP-40G-SR4-S"},"content":{"rendered":"<p><strong>Cisco QSFP-40G-SR4-S compatible 40GBASE-SR4 optical transceiver<\/strong><\/p>\n<p>This product is offered as a Carritech Optics compatible alternative for Cisco <strong>QSFP-40G-SR4-S<\/strong> requirements. It is mapped primarily to the Carritech <strong>CT-QSFP+SR4<\/strong> optical profile and is designed for 40GBASE-SR4 applications.<\/p>\n<p>The module operates at 40Gbps in the QSFP+ form factor, using 850nm optics. It supports up to 100m on OM3 or 150m on OM4 over multimode fibre and uses a MPO-12\/UPC optical interface. It is hot-pluggable and supports operational monitoring through digital diagnostics where available.<\/p>\n<p>40GBASE-SR4 QSFP+ optical connectivity over multimode fibre using four 10Gbps lanes and an MPO-12 interface. Alternate ordering and search references include QSFP-40G-SR4-S=.<\/p>\n<p>This compatible alternative is suitable for replacement, expansion and multi-vendor sourcing projects. Platform coding, firmware support and host FEC requirements should be confirmed before deployment.<\/p>","protected":false},"excerpt":{"rendered":"<ul>\n<li>Cisco QSFP-40G-SR4-S compatible alternative for 40GBASE-SR4 requirements.<\/li>\n<li>40Gbps QSFP+ optical module using 850nm.<\/li>\n<li>Up to 100m on om3 or 150m on om4 over multimode fibre.<\/li>\n<li>MPO-12\/UPC optical interface with digital diagnostic monitoring where supported by the host platform.<\/li>\n<\/ul>","protected":false},"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[250],"product_cat":[72,17,71],"product_tag":[215,868],"class_list":["post-5393","product","type-product","status-publish","product_brand-cisco","product_cat-40g-qsfp","product_cat-optical-transceivers","product_cat-qsfp","product_tag-exc","product_tag-qsfp","first","instock","shipping-taxable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with 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