SFP+ Direct Attach Cables are compliant with the SFF-8431, SFF-8432 and SFF-8472 specifications. Various choices of wire gauge are available from 30 to 24 AWG with various choices of cable length (up to 7m).
Compliant with SFF-8431, 8432 and 8472.
Up to 10.3125Gbps data rate per channel
Up to 7m transmission
Single 3.3V power supply
Temperature Range: 0~ 70 °C
Low EMI radiation Switches, servers and routers
Data Center networks
Storage area networks
High performance computing
Telecommunication and wireless infrastructure
Medical diagnostics and networking
Test and measurement equipment
QSFP+ DAC Specifications
Number of Lanes
Tx & Rx
Channel Data Rate
0 to + 70°C
-40 to + 85°C
3.3 V nominal
38 pins edge connector
Differential Input Return Loss
<-12+2* SQRT (f) with f in GHz
<-6.3+13*Log10/(f/5.5) with f in GHz
Common Mode Output Return Loss
< -7+1.6*f with f in GHz
Difference Waveform Distortion Penalty
VMA Loss to Crosstalk Ratio
Electrostatic Discharge (ESD) to the Electrical Pins
MIL-STD-883C Method 3015.7
Class 1(>2000 Volts)
FCC Class B
Compliant with Standards
CENELEC EN55022 Class B
CISPR22 ITE Class B
Typically Show no Measurable Effect from a 10V/m Field Swept from 80 to 1000MHz
RoHS Directive 2011/65/EU and it's Amendment Directives 6/6
RoHS 6/6 compliant
Operating Case Temperature
Relative Humidity (non-condensation)
Voltage on LVTTL Input
Power Supply Current
Total Power Consumption
Stress or conditions exceed the above range may cause permanent damage to the device.
This is a stress rating only and functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not applied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
2-wire Serial Interface Data Line
2-wire Serial Interface Clock Line
Module Absent. Grounded within the module
Loss of Signal indication. Logic 0 indicates normal operation
Receiver Inverted DATA out. AC Coupled
Receiver DATA out. AC Coupled
Receiver Power Supply
Transmitter Power Supply
Transmitter DATA in. AC Coupled
Transmitter Inverted DATA in. AC Coupled
1. Module circuit ground is isolated from module chassis ground within the module.
2..should be pulled up with 4.7k – 10k ohms on host board to a voltage between 3.15Vand 3.6V.
3.Tx_Disable is an input contact with a 4.7 kΩ to 10 kΩ pullup to VccT inside the module.
4.Mod_ABS is connected to VeeT or VeeR in the SFP+ module. The host may pull this contact up to Vcc_Host with a resistor in the range 4.7 kΩ to10 kΩ.Mod_ABS is asserted “High” when the SFP+ module is physically absent from a host slot.
5. RS0 and RS1 are module inputs and are pulled low to VeeT with > 30 kΩ resistors in the module.
The connector is compatible with the SFF-8432 specification.