{"id":2025,"date":"2026-04-16T14:19:14","date_gmt":"2026-04-16T14:19:14","guid":{"rendered":"https:\/\/demo.accurays.com\/ustransceivers\/product\/ust-400gbase-sr4-2-qsfp-dd-transceiver-for-arista-taa-compliant\/"},"modified":"2026-07-03T02:26:14","modified_gmt":"2026-07-03T02:26:14","slug":"ust-400gbase-sr4-2-qsfp-dd-transceiver-for-arista-taa-compliant","status":"publish","type":"product","link":"https:\/\/demo.accurays.com\/ustransceivers\/product\/ust-400gbase-sr4-2-qsfp-dd-transceiver-for-arista-taa-compliant\/","title":{"rendered":"UST 400GBASE-SR4.2 QSFP-DD Transceiver for Arista   TAA Compliant"},"content":{"rendered":"<p>The US Transceivers compatible QDD-400G-SRBD is a 400GBASE-SR4.2 QSFP-DD transceiver designed for high-density, short-reach multimode fiber deployments. Operating over OM4 multimode fiber, this module supports 400G aggregate data rates using eight electrical lanes and four optical lanes in a bidirectional configuration, with wavelengths of 850 nm and 900 nm. It delivers a maximum reach of 100 meters over OM4 fiber, making it well suited for intra-data-center connectivity.<\/p>\n<p>Built in the compact QSFP-DD form factor, this module uses an LC Duplex connector consistent with its BiDi SR4.2 optical design. It supports Digital Diagnostic Monitoring (DDM) for real-time visibility into temperature, voltage, TX power, RX power, and bias current. This TAA compliant module meets RoHS, CE, and REACH requirements.<\/p>\n<p>The US Transceivers compatible QDD-400G-SRBD is a cost-effective, fully tested alternative engineered to deliver reliable performance in demanding 400G network environments including data center switching, spine-leaf architectures, and high-performance computing interconnects.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The US Transceivers compatible QDD-400G-SRBD is a 400GBASE-SR4.2 QSFP-DD transceiver designed for high-density, short-reach multimode fiber deployments. Operating over OM4 multimode fiber, this module supports 400G aggregate data rates using eight electrical lanes and four optical lanes in a bidirectional configuration, with wavelengths of 850 nm and 900 nm. It delivers a maximum reach of [&hellip;]<\/p>\n","protected":false},"featured_media":968,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[657],"product_cat":[536,547,344],"product_tag":[],"class_list":["post-2025","product","type-product","status-publish","has-post-thumbnail","product_brand-arista","product_cat-400g-qsfp-dd-transceiver","product_cat-400gb-qsfp-dd-sr4-2","product_cat-sfp","pa_data-rate-400gb","pa_distance-100m","pa_product_type-multimode","pa_wavelength-850-900nm","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product\/2025","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=2025"}],"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=2025"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_brand?post=2025"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_cat?post=2025"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_tag?post=2025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}