Product Highlights Better Performance High speeds of up to 40 Gbps and lower latency result in faster transmissions than other types of cables Cost-effective Solution QSFP+ connector on cable replaces four standard SFP+ cable assemblies, ensuring higher port density and cost savings Energy Efficiency Lower power consumption and EMI emissions means savings on energy usage and expenses, and less electronic interference QSFP+ Direct Attach Cable Series 40G Passive QSFP+ Twinaxial Direct Attach Cable Features The 40G Passive QSFP+ Twinaxial Direct Attach Cable is a high performance, high Connectivity The 40G Passive QSFP+ Twinaxial Direct Attach Cable is designed to support high-density bandwidth and cost-effective connection solution that supports 40G Gigabit Ethernet. • QSFP+ (Quad Enhanced Small Form-factor Pluggable) connections for switches with 40G interface, much faster than SFP+. There are three cable • 40 Gbps Gigabit Ethernet The DEM-CB100QXS-4XS QSFP+ to 4X SFP+ one-meter cable features a QSFP+ connector on • Three different models one end, and four SFP+ connectors on the other end, allowing it to connect to up to four 10G models, including the DEM-CB100QXS (one meter) and the DEM-CB300QXS (three meter). • DEM-CB100QXS: 1 meter servers. The 40G Passive QSFP+ Twinaxial Direct Attach Cable is certified to be compatible with • DEM-CB300QXS: 3 meters D-Link products to provide you best performance and reliability. • DEM-CB100QXS-4XS (QSFP+ to four 10G SFP+ cable): 1 meter Ideal for High-Bandwidth Operations • Fully Compliant with the following standards: • SFP MSA (Multi-Source Agreement) • EIA 364 • UL 94 • SFF-8436 The 40G Passive QSFP+ Twinaxial Direct Attach Cable supports speeds of up to 40 Gbps, while having lower crosstalk and power consumption than other cables. This makes it an optimal solution for handling high bandwidth transmission within short distances such as within a rack or between racks inside energy-efficient data centers. • SFF-8431 Quad Small Form-factor Pluggable Plus Format • EIA-364-1000.01 The D-Link 40G Passive QSFP+ Twinaxial Direct Attach Cable uses Quad Small Form-factor Pluggable Plus format (QSFP+) connectors, which integrate four transmitting and four receiving channels. The QSFP+ cable assemblies can replace four standard SFP+ cable assemblies, resulting in higher port density, cost efficiency, and a reduction in power savings compared to standard SFP+. Save on Costs The D-Link 40G Passive QSFP+ Twinaxial Direct Attach Cable features QSFP+ connectors on both ends, thus eliminating the need for expensive QSFP+ transceivers. This makes it more cost-effective than fiber cables which must use QSFP+ transceivers. QSFP+ Direct Attach Cable Series 40G Passive QSFP+ Twinaxial Direct Attach Cable Technical Specifications General Device Rate • 40 Gbps Gigabit Ethernet Connector Type • QSFP+ Cable Assembly Wire AWG • 30 AWG Physical Minimum Cable Bend Radius • DEM-CB100QXS, DEM-CB300QXS: 32 mm (1.26 inches) Cable Characteristic Impedance • 100 Ohms Voltage • 30 V AC Current • 0.5 A Temperature • Operating: -40 to 85 °C (-40 to 185 °F) Certifications • SFP MSA (Multi-Source Agreement) • EIA-364-1000.01 • SFF-8436 • DEM-CB100QXS-4XS: 23.5 mm (0.93 inches) • EIA 364 • UL 94 • SFF-8431 Order Information Model Number Description DEM-CB100QXS 1 meter 40G Passive QSFP+ Twinaxial Direct Attach Cable DEM-CB300QXS 3 meter 40G Passive QSFP+ Twinaxial Direct Attach Cable DEM-CB100QXS-4XS 1 meter 40G Passive QSFP+ to 4X 10G SFP+ Twinaxial Direct Attach Cable Updated 2013/02/01 Specifications are subject to change without notice. D-Link is a registered trademark of D-Link Corporation and its overseas subsidiaries. All other trademarks belong to their respective owners. ©2013 D-Link Corporation. All rights reserved. E&OE.