Copper Passive Direct Attach Cable SFP28 Breakout Cable For Data Center

Basic Information
Place of Origin: Shenzhen, China
Brand Name: Generic
Certification: CE, FCC, ROHS, ISO9001, ISO14000, MSDS, REACH, CP65, TUV, UL
Model Number: QSFP-4SFP25G-CU50CM
Minimum Order Quantity: 1 pc
Price: negotiable
Packaging Details: Static bag, Plastic PVC Pack, Retail box
Delivery Time: 1-5 work days
Payment Terms: T/T, L/C
Supply Ability: 50,000pcs/month
Detail Information
Features: 100G QSFP28 To 4xSFP28 Product Name: Cisco Passive Breakout Cable
Application: Data Center Length: 0.5m ~ 5m
Keywords: QSFP-4SFP25G-CU
High Light:

Copper Passive Direct Attach Cable


Passive Direct Attach Cable SFP28


SFP28 Breakout Cable

Product Description

100G QSFP28 to 4x25G SFP28 Breakout Passive Direct Attach Copper Cable For Cisco QSFP-4SFP25G-CU



  • Operating Temperature: 0~ 70 ℃
  • Support data rates: 25.78Gb/s (per channel)
  • IEEE 802.3bj 100GEBASE-CR4 and P802.3by compliant
  • Compatible to SFP28 MSA and QSFP28 MSA
  • Compatible to SFF-8402, SFF-8432 and SFF8665
  • Reduced power budget and lower port cost compared to QSFP28 optics and AOC
  • RoHS Compliant and Lead-Free
  • Hot pluggable 100 Gbps to 4 x 25 Gbps breakout direct attach cable (DAC) 
  • Functionally identical to Cisco QSFP-4SFP25G-CU series
  • Maximum aggregate data rate: 100 Gb/s (4 x 25Gb/s)
  • High-Density QSFP28 38-PIN and 4x SFP28 20-PIN Connector
  • Operating Temperature Range: 0~ 70 ℃
  • Up to 5m transmission
  • Single 3.3V power supply
  • Low crosstalk
  • I2C based two-wire serial interface for EEPROM signature which can be customized



  • High-performance computing
  • Switches, servers, and routers
  • Telecommunication and network infrastructure
  • Fibre Channel over Ethernet
  • Data Center networks
  • Storage area networks




This Cisco QSFP-4SFP25G-CU compatible DAC series is suitable for very short distances from 0.5M to 5M ,which offers a highly cost-effective Ethernet connectivity solution for the interconnection between the devices using 100G QSFP28 ports and 25G SFP28 ports in data centers. It is fully compliant with IEEE 802.3bj,IEEE 802.3by, SFF-8402, and SFF-8665 standards.

It has been programmed, uniquely serialized, data-traffic and application tested to ensure it is functionally identical to Cisco original products and 100% compatible with Cisco network equipment.


Functional Specification


Compatible Brand Cisco Compatible PN QSFP-4SFP25G-CU
Product Name Breakout DAC Passive Bandwidth 103.125Gbps (4x 25.78Gbps)
Passive Yes Cable Link Length 0.5M to 5M
Connector 1 QSFP28 38-PIN foot print Connector 2 4x SFP28 20-PIN foot print
Wire Gauge AWG 30AWG: 0.5M/1M/2M/3M; 26AWG:4M/5M
Minimum Bend Radius 25mm:0.5M/1M/2M/3M, 30mm:5M
Cable type copper cable Power supply 3.3V
DDM/DOM N/A Cable impedance 100 Ω
Jacket Material OFNR Operating Temp. 0 to 70°C (32 to 158°F)
Power Consumption ≤0.5W HTS-Harmonized Code (US) 8517.62.0090
Protocols IEEE802.3,InfiniBand EDR,SFF-8665, SFF-8402


Ordering Information


Part Number Description Wire Gauge (AWG) Minimum Bend Radius
QSFP-4SFP25G-CU50CM 100G QSFP28 to 4x25G SFP28 DAC Cable 0.5-meter, Passive 30AWG 25mm
QSFP-4SFP25G-CU1M 100G QSFP28 to 4x25G SFP28 DAC Cable 1-meter, Passive 30AWG 25mm
QSFP-4SFP25G-CU1-5M 100G QSFP28 to 4x25G SFP28 DAC Cable 1.5-meter, Passive 30AWG 25mm
QSFP-4SFP25G-CU2M 100G QSFP28 to 4x25G SFP28 DAC Cable 2-meter, Passive 30AWG 25mm
QSFP-4SFP25G-CU2-5M 100G QSFP28 to 4x25G SFP28 DAC Cable 2.5-meter, Passive 30AWG 25mm
QSFP-4SFP25G-CU3M 100G QSFP28 to 4x25G SFP28 DAC Cable 3-meter, Passive 30AWG 25mm
QSFP-4SFP25G-CU3-5M 100G QSFP28 to 4x25G SFP28 DAC Cable 3.5-meter, Passive 30AWG 25mm
QSFP-4SFP25G-CU4M 100G QSFP28 to 4x25G SFP28 DAC Cable 4-meter, Passive 26AWG 25mm
QSFP-4SFP25G-CU5M 100G QSFP28 to 4x25G SFP28 DAC Cable 5-meter, Passive 26AWG 30mm
Note 1. Customized 100G QSFP28 breakout high speed copper cables are available in various lengths. 2. The Wire Gauge is available in AWG24, AWG26, AWG28, and AWG30 for customized need.


Mechanical Dimensions of 100G QSFP28 TO 4SFP28 Direct Attach Cable

Copper Passive Direct Attach Cable SFP28 Breakout Cable For Data Center 0

Contact Details

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