{"id":5262,"date":"2026-07-15T10:34:22","date_gmt":"2026-07-15T10:34:22","guid":{"rendered":"https:\/\/optics.carritech.com\/optical-transceivers\/uncategorized\/qsfp-dd-400g-sr4-2-dl-2\/"},"modified":"2026-07-15T10:35:21","modified_gmt":"2026-07-15T10:35:21","slug":"qsfp-dd-400g-sr4-2-dl-2","status":"publish","type":"product","link":"https:\/\/optics.carritech.com\/fr\/optical-transceivers\/optical-transceivers\/qsfp-dd\/400g-qsfp-dd\/qsfp-dd-400g-sr4-2-dl-2\/","title":{"rendered":"QSFP-DD-400G-SR4.2-DL"},"content":{"rendered":"<p><strong>Dell QSFP-DD-400G-SR4.2-DL compatible 400G QSFP-DD SR4 850nm 100m transceiver<\/strong><\/p>\n<p>Carritech Optics can supply a compatible alternative for Dell QSFP-DD-400G-SR4.2-DL requirements, matched to Carritech CT-400G-QDD-SR4. This module is designed for short-range 400 Gigabit Ethernet links over parallel multimode fibre, supporting transmission distances up to 100 metres over OM4\/OM5 MMF.<\/p>\n<p>The transceiver uses an 850nm VCSEL optical interface with a QSFP-DD form factor and MPO-12\/APC connector. It is suitable for high-density data centre, cloud and enterprise switching environments where a reliable OEM-compatible 400G SR4\/SR4.2 optical module is required.<\/p>\n<p>Carritech compatible transceivers are supplied tested, coded and ready for deployment, with support for multi-vendor network environments and lifetime warranty cover.<\/p>","protected":false},"excerpt":{"rendered":"<ul>\n<li>QSFP-DD-400G-SR4.2-DL \/ QDD-SR4.2-400G \/ Dell 400G QSFP-DD SR4.2 compatible 400G QSFP-DD SR4 transceiver alternative.<\/li>\n<li>Matched to Carritech CT-400G-QDD-SR4 for 400GBASE-SR4\/SR4.2 Ethernet links up to 100 m over multimode fibre.<\/li>\n<li>QSFP-DD, 400G PAM4, 850nm, MPO-12\/APC, MMF and DOM\/DDM support.<\/li>\n<\/ul>","protected":false},"featured_media":4517,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[280],"product_cat":[96,17,91],"product_tag":[485,215],"class_list":["post-5262","product","type-product","status-publish","has-post-thumbnail","product_brand-dell","product_cat-400g-qsfp-dd","product_cat-optical-transceivers","product_cat-qsfp-dd","product_tag-400gbase-sr4","product_tag-exc","first","instock","shipping-taxable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Dell QSFP-DD-400G-SR4.2-DL Compatible 400G QSFP-DD SR4 Transceiver<\/title>\n<meta name=\"description\" content=\"Dell QSFP-DD-400G-SR4.2-DL compatible 400G QSFP-DD SR4 transceiver alternative to Carritech CT-400G-QDD-SR4. 850nm, 100m, MPO-12\/APC, MMF, DOM.\" \/>\n<meta name=\"robots\" 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