{"id":2101,"date":"2026-07-03T02:09:51","date_gmt":"2026-07-03T02:09:51","guid":{"rendered":"https:\/\/demo.accurays.com\/ustransceivers\/product\/ust-400g-vr4-qsfp112-50m-rhs-flat-top-ethernet-arista-compatible-taa-compliant\/"},"modified":"2026-07-03T02:09:51","modified_gmt":"2026-07-03T02:09:51","slug":"ust-400g-vr4-qsfp112-50m-rhs-flat-top-ethernet-arista-compatible-taa-compliant","status":"publish","type":"product","link":"https:\/\/demo.accurays.com\/ustransceivers\/product\/ust-400g-vr4-qsfp112-50m-rhs-flat-top-ethernet-arista-compatible-taa-compliant\/","title":{"rendered":"UST 400G VR4 QSFP112 50m RHS Flat Top Ethernet Arista Compatible   TAA Compliant"},"content":{"rendered":"<p>The US Transceivers compatible Q112-400G-VSR4 is a high-performance 400G QSFP112 optical transceiver designed for very short reach data center and enterprise networking applications. Operating over multimode fiber with a maximum cable distance of 50 meters, this module delivers 400 Gigabit Ethernet connectivity using four parallel lanes of 100G each, making it well suited for high-density switching and top-of-rack deployments.<\/p>\n<p>This transceiver features an MPO\/MTP connector interface and VCSEL-based transmitter technology operating at an 850nm wavelength. The QSFP112 form factor enables compact, high-port-density deployments while supporting Digital Diagnostic Monitoring for real-time visibility into optical performance parameters such as temperature, voltage, and optical power levels.<\/p>\n<p>The US Transceivers compatible Q112-400G-VSR4 is fully TAA compliant and meets RoHS, CE, and REACH regulatory standards. It is a cost-effective, drop-in compatible alternative engineered to meet or exceed OEM specifications for mission-critical network infrastructure.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The US Transceivers compatible Q112-400G-VSR4 is a high-performance 400G QSFP112 optical transceiver designed for very short reach data center and enterprise networking applications. Operating over multimode fiber with a maximum cable distance of 50 meters, this module delivers 400 Gigabit Ethernet connectivity using four parallel lanes of 100G each, making it well suited for high-density [&hellip;]<\/p>\n","protected":false},"featured_media":2028,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[657],"product_cat":[551,708,344],"product_tag":[],"class_list":["post-2101","product","type-product","status-publish","has-post-thumbnail","product_brand-arista","product_cat-400g-qsfp112-transceiver","product_cat-400gb-qsfp112-vr4","product_cat-sfp","pa_data-rate-400gb","pa_distance-50m","pa_product_type-multimode","pa_wavelength-850nm","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product\/2101","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=2101"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/media\/2028"}],"wp:attachment":[{"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/media?parent=2101"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_brand?post=2101"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_cat?post=2101"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_tag?post=2101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}