Description
Cisco QSFP-100G-CU3M Module
The Cisco 100GBASE QSFP-100G modules are our latest generation of 100G transceiver modules solution based on a QSFP form factor. Cisco QSFP to QSFP copper direct-attach 100GBASE-CR4 cables are suitable for very short links and offer a cost-effective way to establish a 100-Gigabit link between QSFP-100G ports of Cisco switches within racks and across adjacent racks. The QSFP-100G-CU3M is a 3-meter Passive Copper Cable.
Key Features:
- Diameter: 7
- 100GBase
For detailed specifications, refer to the QSFP-100G-CU3M datasheet in the tabs.
Detailed Technical Specifications
Manufacturer: Cisco
Product Number: QSFP-100G-CU3M
Product Family: Cisco 100GBASE QSFP
Product Type: 100GBASE-CR4 Passive Copper Direct-Attach Cable
Cable Type: Passive Direct-Attach Copper (DAC)
Cable Construction: Twinax Copper
Interface: QSFP to QSFP
Form Factor: QSFP / QSFP28
Data Rate: 100 Gigabit Ethernet (100GbE)
Cable Length: 3 meters (9.84 feet)
Cable Diameter: 7 mm
Minimum Bend Radius: 50 mm
Power Consumption: 1.5W per end
Pull-Tab Color: Orange
Application: Short-reach 100 Gigabit Ethernet connectivity
Connection Type: Fixed QSFP-to-QSFP cable assembly
Operating Temperature: 0°C to 70°C (32°F to 158°F)
Storage Temperature: -40°C to 85°C (-40°F to 185°F)
Maximum QSFP Connector Dimensions: 13.5 × 18.4 × 72.4 mm (H × W × D)
QSFP Connector Weight: 100 grams or less
Hot-Swappable: Yes
Optical Components Required: No
External Power Supply Required: No
Performance & Connectivity
- Supports 100 Gigabit Ethernet
- Designed for 100GBASE-CR4 applications
- Passive copper architecture for short-distance connections
- Provides direct QSFP-to-QSFP connectivity
- Designed for connections between compatible Cisco QSFP-100G ports
- Suitable for connections within a rack or between adjacent racks
- Low-power alternative to optical transceivers for short-distance 100GbE links
- Integrated QSFP connectors eliminate the need for separate transceiver modules
- No separate fiber-optic patch cable required
- Fixed 3-meter cable assembly
- Designed for high-density data center and enterprise network environments
- Suitable for switch-to-switch and other supported 100GbE equipment connections
Standards & Compliance
- 100GBASE-CR4
- IEEE 802.3bj
- QSFP high-speed electrical interface
- Hot-pluggable QSFP cable assembly
- Designed for supported Cisco 100 Gigabit Ethernet interfaces
Typical Applications
- Data center 100GbE interconnects
- Top-of-Rack (ToR) connectivity
- Switch-to-switch connections
- In-rack network connections
- Adjacent-rack connections
- High-density network infrastructure
- Short-reach 100 Gigabit Ethernet deployments

New Genuine Cisco QSFP-100G-LR4-S 






James IT Mgr Lockheed –
Ordered four of these and had a great experience from start to finish. Everything arrived quickly, well packaged, and exactly as expected. Customer service was excellent—they were responsive, professional, and made the entire ordering process easy. Very satisfied with the purchase and would definitely order from AMNET Global again.