Direct Attachable Cale 10G/25G/40G/100G
 DAC(Direct Attach Copper) cable with various length is twinax cable that firmly links the ports  inside a piece of dynamic hardware, such as switches, routers, servers or any other type of information storage device. 


DAC cables can be 10G, 25G, 40G and 100G regarding the transmission rate. And they can also be passive or active with driver chip inside. DAC cables can either be truck type or breakout type for data center connectivity and other network aggregation.


Parameters10G DAC25G DAC40G DAC100G DAC
Value
Module Form FactorSFP+SFP28QSFP+QSFP28
Maximum Data Rate10.3125Gbps 25.78125Gb/s10.3Gbps per lane ,4 lanes25.78125Gb/s per lane, 4 lanes
Cable LengthsUp to 7m as passive type; Up to 10m as Active typeUp to 5m as Passive typeUp to 5m as Passive type; Up to 10m as Active typeUp to 3m as Passive type;     Up to 10m as Active type;
Protocols supportedSAN and high band switch/router, 25G EthernetSAN and high band switch/router, 25G EthernetQSFP MSA, 40G Ethernet,InfiniBand SDR/DDR/QDR, server/switches100G Ethernet,  InfiniBand 4x EDR, SAS, servers,switch/router
Electrical Interface and Pin-out20-pin edge connector20-pin edge connector38-pin edge connector38-pin edge connector
Cable Type30AWG, 28AWG, 26AWG, 24AWG are available
Maximum Power Consumption per End <0.1 W  <0.1 W 0.02 W (typ.) 2.5w
Management Interface I2C (SupportsSFF8472)Serial, I2C-based(SFF-8472 Rev 11.0)Serial, I2C-based(SFF-8636)Serial, I2C-based(SFF-8636 Rev 2.6)
Cable length tolerance<0.5m          +3/-0 cm
0.5~5m      +5/-0 cm
5.0~10m    +8/-0cm
10~20m    +10/-0cm



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