200G QSFP56 InfiniBand HDR to 2xQSFP56 HDR100 Breakout DAC

NADDOD Abel Feb 2, 2023


  • IBTA InfiniBand HDR compliant
  • 200Gb/s HDR to 2x100Gb/s HDR100 data rate
  • 4x 50Gb/s PAM4 modulation
  • SFF-8665 compliant
  • Operating case temperature 0-70°C
  • Single 3.3V supply voltage
  • BER (Bit Error Rate) 1E-15 with InfiniBand systems
  • Hot pluggable
  • RoHS compliant
  • LSZH (Low Smoke Zero Halogen) jacket
  • LF (Lead Free) HF (Halogen Free) PCB
  • SFF-8636 compliant I2C management interface


The Q2Q56-200G-DACH splitter cables are high-speed, cost-effective alternatives to fiber optics in 200Gb/s InfiniBand HDR applications.

Q2Q56-200G-DACH cables provide connectivity between system units with a 200Gb/s HDR QSFP56 port on one side and two 100Gb/s HDR100 QSFP56 ports on the other side. The cable connects the data signals from each of the 2 dual copper pairs on the single QSFP56 (pair 1&2, 3&4) end to the dual copper pair of each of the QSFP56 (pair 1&2) ends on the multi-port side. Each QSFP56 port comprises an EEPROM providing product information, which can be read by the host system.

NADDOD’s unique quality passive copper cable solutions provide power-efficient connectivity for short distance interconnects. It enables higher port bandwidth, density and configurability at a low cost and reduced power requirement in the data centers.

Rigorous cable production testing ensures best out-of-the box installation experience, performance and durability.

Absolute Maximum Ratings

Table1-Absolute Maximum Ratings
Parameter Min. Typical Max. Unit Note
Storage Temperature -40 - +85 ºC  
Supply voltage -0.3 - 3.6 V  
Data input voltage -0.3 - 3.6 V  
Control input voltage -0.3 - 3.6 V  

Operational Specifications

Table2-Operational Specifications
Parameter Min. Typical Max. Unit Note
Supply voltage (Vcc) 3.135 3.3 3.465 V  
Power consumption - - 0.1 W  
Operating case temperature 0 - 70  
Operating relative humidity 5 - 85 %  

Electrical Specifications

Table3-Electrical Specifications
Parameter Min. Typical Max. Unit Note
Characteristic impedance 90 100 110 Ω  
Time propagation delay (informative) - - 4.5 ns/m  

Mechanical Specifications

mechanical specifications
Length (m) Cable AWG Single Cable Diameter Minimum Bend Radius
1 30 5.2 ± 0.3mm Single bend: 26mm Assembly/repeated bend: 52mm
2 26/30 5.2 ± 0.3mm/ 6.8 ± 0.3mm Single bend: 26/34mm Assembly/repeated bend: 52/ 68mm
3 26 6.8 ± 0.3mm Single bend: 34mm Assembly/repeated bend: 68mm

Regulatory Compliance

Table4-Regulatory Compliance
Feature Test Method Performance
Electrostatic Discharge (ESD) to the Electrical Pins MIL-STD-883C Method 3015.7 Class 1(>2000 Volts)
Electromagnetic Interference(EMI) FCC Class B Compliant with Standards
CENELEC EN55022 Class B
RF Immunity(RFI) IEC61000-4-3 Typically Show no Measurable Effect from a 10V/m Field Swept from 80 to 1000MHz
RoHS Compliance RoHS Directive 2011/65/EU and it's Amendment Directives (EU) 2015/863 RoHS (EU)2015/863 compliant
REACH Compliance REACH  Regulation (EC) No 1907/2006 REACH (EC) No 1907/2006 compliant

Part Numbers and Descriptions

Table5-Part Numbers and Descriptions
Part Number Description
Q2Q56-200G-CU1H passive copper hybrid cable, IB HDR 200Gb/s to 2x100Gb/s, QSFP56 to 2xQSFP56, LSZH, colored, 1m, 30AWG 
Q2Q56-200G-CU1-5H passive copper hybrid cable, IB HDR 200Gb/s to 2x100Gb/s, QSFP56 to 2xQSFP56, LSZH, colored, 1.5m, 30AWG
Q2Q56-200G-CU2H passive copper hybrid cable, IB HDR 200Gb/s to 2x100Gb/s, QSFP56 to 2xQSFP56, LSZH, colored, 2m, 26AWG 


Handling Precautions: This device is susceptible to damage as a result of electrostatic discharge (ESD). A static-free environment is highly recommended. Follow guidelines according to proper ESD procedures.

Laser Safety: Radiation emitted by laser devices can be dangerous to human eyes. Avoid eye exposure to direct or indirect radiation.

Related Resouces:
Datasheet: 200G QSFP56 InfiniBand HDR to 2xQSFP56 HDR100 Breakout DAC
What Is InfiniBand and How Is It Different from Ethernet?
NADDOD 200G InfiniBand HDR AOC vs OEM
200G HDR Optics Products Application Scenarios
NADDOD 200G InfiniBand Cable Products Introduction
NADDOD 200G InfiniBand Optical Transceiver Products Introduction