{"id":990,"date":"2026-02-25T22:16:50","date_gmt":"2026-02-25T22:16:50","guid":{"rendered":"https:\/\/demo.accurays.com\/ustransceivers\/product\/ust-40gbase-lr4-qsfp-transceiver-for-cisco-qsfp-40g-lr4-s-taa-compliant\/"},"modified":"2026-02-25T22:16:50","modified_gmt":"2026-02-25T22:16:50","slug":"ust-40gbase-lr4-qsfp-transceiver-for-cisco-qsfp-40g-lr4-s-taa-compliant","status":"publish","type":"product","link":"https:\/\/demo.accurays.com\/ustransceivers\/product\/ust-40gbase-lr4-qsfp-transceiver-for-cisco-qsfp-40g-lr4-s-taa-compliant\/","title":{"rendered":"UST 40GBASE-LR4 QSFP+ Transceiver for Cisco &#8211; QSFP-40G-LR4-S  TAA Compliant"},"content":{"rendered":"<p>The US Transceivers compatible QSFP-40G-LR4-S is a 40GBASE-LR4 QSFP+ optical transceiver module designed for high-speed 40 Gigabit Ethernet applications over single-mode fiber. This module utilizes four CWDM wavelengths centered at 1271 nm, 1291 nm, 1311 nm, and 1331 nm, multiplexed onto a single LC Duplex connector, supporting link distances of up to 10 km.<\/p>\n<p>Built to TAA compliance standards, this QSFP+ transceiver is a cost-effective, fully compatible alternative for use in networking equipment that supports the QSFP-40G-LR4-S specification. It supports Digital Diagnostic Monitoring (DDM) for real-time visibility into key optical parameters including temperature, voltage, TX power, and RX power.<\/p>\n<p>This module is ideal for enterprise core networking, data center interconnects, and service provider deployments requiring reliable long-reach 40G connectivity over SMF infrastructure. It complies with IEEE 802.3ba and relevant MSA standards, and meets RoHS, CE, REACH, and TAA requirements.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The US Transceivers compatible QSFP-40G-LR4-S is a 40GBASE-LR4 QSFP+ optical transceiver module designed for high-speed 40 Gigabit Ethernet applications over single-mode fiber. This module utilizes four CWDM wavelengths centered at 1271 nm, 1291 nm, 1311 nm, and 1331 nm, multiplexed onto a single LC Duplex connector, supporting link distances of up to 10 km. Built [&hellip;]<\/p>\n","protected":false},"featured_media":984,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[18],"product_cat":[553,559,344],"product_tag":[],"class_list":["post-990","product","type-product","status-publish","has-post-thumbnail","product_brand-cisco","product_cat-40g-qsfp-transceiver","product_cat-40gb-qsfp-lr4","product_cat-sfp","pa_data-rate-40gb","pa_distance-10km","pa_product_type-single-mode","pa_wavelength-1271-1291-1311-1331nm","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product\/990","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/comments?post=990"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/media\/984"}],"wp:attachment":[{"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/media?parent=990"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_brand?post=990"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_cat?post=990"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_tag?post=990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}