{"product_id":"ubiquiti-dac-qsfp28-100g-0-5m","title":"Ubiquiti 100G QSFP28 Direct Attach Cable 0.5M - Passive DAC, 100\/40 Gbps (UACC-DAC-QSFP28-0.5M)","description":"\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003ePassive 100G Direct Attach Cable for Short Switch-to-Switch Links Without Fiber Optics\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003ca href=\"\/collections\/ubiquiti\"\u003eUbiquiti\u003c\/a\u003e UACC-DAC-QSFP28-0.5M is a 0.5-meter (1.64 ft) passive direct attach cable with QSFP28 connectors on both ends. It delivers 100 Gbps throughput between two QSFP28 ports or 40 Gbps between QSFP+ ports, connecting adjacent switches, routers, or storage devices in the same rack without the cost and complexity of fiber transceivers and patch cables.\u003c\/p\u003e\n\u003cp\u003eDAC cables are the preferred interconnect for short runs (under 3 meters) where two devices sit in the same rack or adjacent rack units. They cost less than a pair of 100G transceivers plus fiber, draw less power (passive cable needs no laser), and introduce lower latency than optical modules. The 0.5M length is sized for switch-to-switch stacking or connecting devices mounted directly above or below each other.\u003c\/p\u003e\n\u003ch3\u003eWhere the UACC-DAC-QSFP28-0.5M Fits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch-to-switch stacking\u003c\/strong\u003e in the same rack where two \u003ca href=\"\/collections\/unifi-switches\"\u003eUniFi\u003c\/a\u003e or Enterprise switches need a 100G interconnect and the 0.5M length spans the 1-2U gap between them\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch-to-server\/NAS connections\u003c\/strong\u003e where a 100G NIC in a server or storage appliance connects to the top-of-rack switch at full speed without fiber transceivers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLab and test environments\u003c\/strong\u003e where cost per link matters, the devices are co-located in the same rack, and passive cables simplify inventory by eliminating separate transceivers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat the Cable Delivers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 Gbps \/ 40 Gbps:\u003c\/strong\u003e Full 100G line rate on QSFP28 ports. Backward-compatible at 40G on QSFP+ ports. One cable type covers both speeds depending on the port it plugs into.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePassive, zero power draw:\u003c\/strong\u003e No laser, no power consumption beyond the port itself. Lower latency than active optical modules and no thermal output to manage in dense rack configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.5M length:\u003c\/strong\u003e 1.64 feet of cable spans 1-2 rack units. Short enough to stay out of the cable management path and avoid excess coiled cable behind the rack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQSFP28 to QSFP28:\u003c\/strong\u003e Standard QSFP28 connector on both ends. Compatible with any QSFP28 or QSFP+ port on UniFi, Enterprise, and third-party switches and NICs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBuild and Specs\u003c\/h3\u003e\n\u003cp\u003ePassive direct attach cable. QSFP28 male to QSFP28 male. Data rate: 100\/40 Gbps. Length: 0.5m (1.64 ft). Wire gauge: 30 AWG. Jacket: PVC, black. Compatible with QSFP28 and QSFP+ interfaces. Part Number: UACC-DAC-QSFP28-0.5M.\u003c\/p\u003e","brand":"Ubiquiti Inc.","offers":[{"title":"Default Title","offer_id":52336811606200,"sku":"UACC-DAC-QSFP28-0.5M","price":46.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/9110\/4952\/files\/1084074658.jpg?v=1764442400","url":"https:\/\/islandelectricalsupply.com\/products\/ubiquiti-dac-qsfp28-100g-0-5m","provider":"Island Electrical Supply","version":"1.0","type":"link"}