{"product_id":"10g-sfp-dac-cable-0-5m-passive-twinax-direct-attach-for-sfp-ports","title":"10G SFP+ DAC Cable 0.5m - Passive Twinax Direct Attach for SFP+ Ports","description":"\u003cp\u003eIn this review of the 10G SFP+ DAC Cable 0.5m by QSFPTEK, the bottom line is simple: this passive twinax lead is for network engineers and system builders who need a low-cost, low-power, reliable short-reach 10G interconnect. The reviewer found it most valuable when linking switches, servers, or NICs with SFP+ ports for Storage Area Network or NAS traffic where latency and power matter. Easy plug-and-play operation and a compact 0.5m length make it a practical, no-fuss choice for dense racks where active optics are unnecessary.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e10Gb SFP+ to SFP+ connection:\u003c\/strong\u003e Delivers a native 10G direct attach link between compatible SFP+ ports without separate transceivers, simplifying connections between switches, routers and servers.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePassive twinax design:\u003c\/strong\u003e Requires no external power or signal conditioning, which keeps power consumption under 0.5W and reduces heat in dense deployments.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e0.5m length:\u003c\/strong\u003e The short 0.5 meter cable fits tight rack and chassis layouts and helps avoid excess cable slack that can obstruct airflow.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eWide vendor compatibility:\u003c\/strong\u003e Works with many devices from Cisco, Ubiquiti, D-Link, Netgear, Mikrotik and other open switch platforms that accept SFP+ DACs.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eGold plated plugs and EEPROM:\u003c\/strong\u003e Durable plated contacts enable repeated hot-plug cycles and the built-in EEPROM provides basic module identification for host equipment.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommercial temperature rating:\u003c\/strong\u003e Rated for 0 to 70 C operation so it is suitable for standard data center and office environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis cable is aimed at IT professionals building short-reach 10G links inside racks and between adjacent racks, particularly for NAS, SAN and high performance computing clusters where low latency and low power are priorities. It suits environments that favor cost-effective, high-port-density cabling over active optics for short distances.\u003c\/p\u003e\n\u003cp\u003eIt is not intended for long-distance fiber runs or for environments that require extended temperature ranges or in-line signal conditioning. Teams that need vendor-specific certified optics for warranty or support reasons should verify compatibility before deploying.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eLow power passive design keeps per-port energy under 0.5W, helping manage heat and power budgets.\u003c\/li\u003e\n \u003cli\u003eCompact 0.5m length is ideal for dense rack layouts and short patching between adjacent equipment.\u003c\/li\u003e\n \u003cli\u003eBroad compatibility with many SFP+ capable vendors makes it a flexible spare part for mixed-vendor networks.\u003c\/li\u003e\n \u003cli\u003ePlug-and-play operation with gold plated plugs and EEPROM provides reliable hot-plug behavior.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003ePassive twinax is limited to short reaches; it is not suitable as a substitute for fiber or long-distance links.\u003c\/li\u003e\n \u003cli\u003eCommercial temperature rating of 0 to 70 C may be insufficient for extreme or outdoor installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003e10Gb SFP+ Direct Attach Copper Twinax Cable\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e0.5 m (1.64 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003eSFP+ to SFP+\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCable gauge\u003c\/td\u003e\n\u003ctd\u003eAWG30 (customizable options available)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003ePower consumption\u003c\/td\u003e\n\u003ctd\u003ePassive, less than 0.5W\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 70 C (commercial)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eCisco, Ubiquiti, D-Link, Netgear, Mikrotik and other open switch devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe QSFPTEK 10G SFP+ 0.5m passive DAC is a practical, cost-conscious choice for short-reach 10G links in racks and data closets. It gives reliable plug-and-play performance with low power draw and good vendor interoperability, offering strong value for teams connecting switches, servers, or storage inside a rack. Those needing long-distance runs or extended environmental ratings should choose a different media.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this cable work with my Cisco or Ubiquiti switch?\u003c\/strong\u003e\u003cbr\u003eYes; it is designed for broad compatibility with Cisco, Ubiquiti and other SFP+ capable devices, but check your switch documentation for any vendor acceptance requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this an active module or does it need power?\u003c\/strong\u003e\u003cbr\u003eThis is a passive twinax DAC, so it contains no active signal conditioning and draws less than 0.5W, requiring no external power.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this for runs longer than 0.5 m?\u003c\/strong\u003e\u003cbr\u003eNo; this assembly is 0.5m long and passive twinax is intended for short-reach links only. For longer distances use fiber or an active solution.\u003c\/p\u003e","brand":"QSFPTEK","offers":[{"title":"Default Title","offer_id":48265443573979,"sku":"B0B59DP856","price":198.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71tmMuRhGzL._AC_SL1500_d06bad2d-a20c-4037-867f-951b7a1bd3e6.jpg?v=1776357894","url":"https:\/\/gearmusthave.com\/products\/10g-sfp-dac-cable-0-5m-passive-twinax-direct-attach-for-sfp-ports","provider":"GearMustHave","version":"1.0","type":"link"}