Approved Networks Cisco/Mellanox 40GBASE QSFP+ Passive DAC Cable (QSFP+ to QSFP+) Multi-Vendor Length Required
A passive DAC cable carries an Ethernet signal over a short length (typically under five meters) of copper with no additional components to boost the signal. The host networking equipment must support the signal processing functions for a passive DAC to work. When a DAC is inserted, networking gear that is compatible with passive DACs reads the module type so the signal conditioning can be activated. Today, 98% of the market utilizes passive DACs for transmissions of seven meters and under, but this depends on the data rate.
40GBase-CR4, 100% Compatible QSFP+ Multi-Vendor DAC (Direct Attach Copper) Cable, Passive
Benefits
Lower Price
- Significant savings over short-range optical transceiver solutions
Lower Power
- DACs' cooling requirements are relaxed due to their thermal design. This lowers power consumption and decreases data center operating expenses
- SFP+ SR optical transceiver = 1 W
- Passive DAC ‹ 0.1 W
Increased Reliability
Fewer components provide more consistent transmission performance. They are pre-terminated, factory assembled, and fully tested. A DAC does not produce heat, making it a more versatile product that can be used in wider temperature ranges.
Lower Latency
- Multi-Mode Fiber (MMF) and Sigle-Mode Fiber (SMF) = 4.96 ns per meter
- Passive DAC = 4.60 ns per meter
Time
- Plug and play means no time is wasted inspecting connections or cable components
- Quick and easy installation for data center technicians
DATA SHEETWe can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be ship to international destinations.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
