Cisco QSFP-H40G-CU QSFP+ DAC Breakout Cable , QSFP+ to QSFP+ cable

Basic Information
Place of Origin: Shenzhen, China
Brand Name: Generic
Certification: CE, FCC, ROHS, ISO9001, ISO14000, MSDS, REACH, CP65, TUV, UL
Model Number: QSFP-H40G-CU50CM
Minimum Order Quantity: 1 pc
Price: negotiable
Packaging Details: Static bag, Plastic bag, Retail box or by required
Delivery Time: 1-5 work days
Payment Terms: T/T, L/C
Supply Ability: 50,000pcs/month
Detail Information
Features: 40Gbps QSFP+ To QSFP+ Name: Cisco Direct Attach Cable
Application: Data Center Keywords: QSFP-H40G-CU
Jacket Material: PVC (OFNR) Cable Iinks: 50cm ~ 7m
High Light:

Cisco QSFP-H40G-CU


QSFP+ DAC Breakout Cable


QSFP+ to QSFP+ cable

Product Description

40G Cisco QSFP-H40G-CU Compatible Direct Attached Cable QSFP+ to QSFP+ Passive DAC



  • Available lengths (in meters): 0.5, 1, 2, 3...
  • Commercial temperature range(COM): 0 to 70°C
  • Single 3.3V power supply
  • Functionally identical to Cisco QSFP-H40G-CU series
  • AC coupling of PECL signals
  • Compliant QSFP MSA specifications
  • Compliant with industry-standard QSFP+ form factor SFF-8436
  • 4-Channel Full-Duplex Passive Copper Cable Transceiver
  • High-Density QSFP 38-PIN Connector
  • Support for multi-gigabit data rates: 1Gb/s - 10.3Gb/s (per channel)
  • Maximum aggregate data rate: 41.2Gb/s
  • Wire AWG: AWG30/AWG26/AWG24
  • All-metal housing for superior EMI performance


  • 2G/4G/ 8G/ 10G Fibre Channel
  • Networked storage systems
  • InfiniBand QDR (4 x 10G), DDR (4 x 5G) and SDR (4 x 2.5G)interconnects
  • 10G/40G Ethernet (10G/40GbE)
  • Data Center networking
  • Hubs, Switches, Routers, Servers
  • External storage systems




This QSFP+ Cisco QSFP-H40G-CU Compatible copper direct-attach cable series is suitable for very short links and offer a cost-effective way to establish a 40-Gigabit link between QSFP+ 40G ports within racks and across adjacent racks.

The 40G QSFP+ to QSFP+ DAC is fully complies with QSFP+ Multi-Source Agreement (MSA) standards SFF-8436 and IEEE 802.3ba 40GBASE-CR4.

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 40 Gigabit QSFP+ ports network equipment.


Functional Specification


Compatible Brand Cisco Compatible PN QSFP-H40G-CU
Product Name Direct Attach Cable Data Rate (Gbps) 40Gbps
Connectors QSFP+ to QSFP+ Cable Range 0.5m to 7m
Jacket Material PVC (OFNR) Operating Temp. 0 to 70°C (32 to 158°F)
Compliance MSA Compliant Cable Type Passive Twinax Copper Cable
Protocols 40G InfiniBand 8x DDR, 4x QDR, 10G/40Gigabit Ethernet, Fibre Channel


Ordering Information


Part Number Description Wire Gauge Minimum Bend Radius
QSFP-H40G-CU50CM 40G QSFP+ to QSFP+ DAC Cable, 0.5-meter, Passive 30AWG 35mm
QSFP-H40G-CU1M 40G QSFP+ to QSFP+ DAC Cable, 1-meter, Passive 30AWG 35mm
QSFP-H40G-CU2M 40G QSFP+ to QSFP+ DAC Cable, 2-meter, Passive 30AWG 35mm
QSFP-H40G-CU3M 40G QSFP+ to QSFP+ DAC Cable,3-meter, Passive 30AWG 35mm
QSFP-H40G-CU4M 40G QSFP+ to QSFP+ DAC Cable,4-meter, Passive 26AWG 40mm
QSFP-H40G-CU5M 40G QSFP+ to QSFP+ DAC Cable,5-meter, Passive 26AWG 40mm
QSFP-H40G-CU6M 40G QSFP+ to QSFP+ DAC Cable,6-meter, Passive 26AWG 45mm
QSFP-H40G-CU7M 40G QSFP+ to QSFP+ Direct Cable,7-meter, Passive 26AWG 47.5mm
Note Cable length could be customized to any length as required.


Contact Details

WhatsApp : +8615989585901