{"id":2022,"date":"2026-04-16T14:19:14","date_gmt":"2026-04-16T14:19:14","guid":{"rendered":"https:\/\/demo.accurays.com\/ustransceivers\/product\/ust-400gbase-fr4-qsfp-dd-transceiver-for-arista-qdd-400g-fr4-taa-compliant\/"},"modified":"2026-07-03T02:26:15","modified_gmt":"2026-07-03T02:26:15","slug":"ust-400gbase-fr4-qsfp-dd-transceiver-for-arista-qdd-400g-fr4-taa-compliant","status":"publish","type":"product","link":"https:\/\/demo.accurays.com\/ustransceivers\/product\/ust-400gbase-fr4-qsfp-dd-transceiver-for-arista-qdd-400g-fr4-taa-compliant\/","title":{"rendered":"UST 400GBASE-FR4 QSFP-DD Transceiver for Arista &#8211; QDD-400G-FR4   TAA Compliant"},"content":{"rendered":"<p>The US Transceivers compatible QDD-400G-FR4 is a 400GBASE-FR4 QSFP-DD optical transceiver designed for high-density 400G Ethernet deployments. Operating over duplex single-mode fiber, this module transmits across four LWDM wavelengths in the 1310 nm region using LAN-WDM technology, supporting link distances up to 2 km. It is fully compliant with IEEE 802.3bs and QSFP-DD MSA standards.<\/p>\n<p>This transceiver delivers 400 Gbps aggregate throughput by combining four 100G PAM4 lanes, making it well suited for data center interconnect, core switching, and high-performance computing environments. The compact QSFP-DD form factor enables high port density in modern 400G-capable switches and routers.<\/p>\n<p>Manufactured to meet strict quality and interoperability standards, the US Transceivers compatible QDD-400G-FR4 supports Digital Diagnostic Monitoring (DDM) and is TAA compliant, RoHS compliant, and built as a reliable, cost-effective alternative for network infrastructure upgrades.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The US Transceivers compatible QDD-400G-FR4 is a 400GBASE-FR4 QSFP-DD optical transceiver designed for high-density 400G Ethernet deployments. Operating over duplex single-mode fiber, this module transmits across four LWDM wavelengths in the 1310 nm region using LAN-WDM technology, supporting link distances up to 2 km. It is fully compliant with IEEE 802.3bs and QSFP-DD MSA standards. [&hellip;]<\/p>\n","protected":false},"featured_media":968,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[657],"product_cat":[536,542,344],"product_tag":[],"class_list":["post-2022","product","type-product","status-publish","has-post-thumbnail","product_brand-arista","product_cat-400g-qsfp-dd-transceiver","product_cat-400gb-qsfp-dd-fr4","product_cat-sfp","pa_data-rate-400gb","pa_distance-2km","pa_product_type-single-mode","pa_wavelength-1295-56-1300-05-1304-58-1309-14nm","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product\/2022","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=2022"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/media\/968"}],"wp:attachment":[{"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/media?parent=2022"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_brand?post=2022"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_cat?post=2022"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_tag?post=2022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}