Main Features
Connector Type	Dual LC
Type	QSFP-DD Transceiver
Data Rate	2 × 100 Gbps
Compatibility	Cisco QSFP-DD Ports
Power Consumption	7 W
Interface	Duplex LC Optical
Physical Specification
Dimensions	18.35 mm × 89.4 mm × 8.5 mm
Weight	72 g
Form Factor	QSFP-DD
Temperature
Operating Temperature	0°C to 70°C

Technical Specifications

• Transceiver Type: QSFP-DD
• Data Rate per Lane: 100 Gbps per lane (4 lanes, totaling 400 Gbps)
• Wavelength Range: CWDM4 (1270 nm, 1290 nm, 1310 nm, 1330 nm)
• Transmission Distance: Up to 2 km
• Fiber Type: Single-Mode Fiber (SMF)
• Connector Type: Dual LC connectors
• Power Consumption: Low power consumption design
• Operating Temperature: 0°C to 70°C (32°F to 158°F)
• Compliance: IEEE 802.3bs, QSFP-DD MSA, and CWDM4 MSA compliant

Overview of 400G Optical Module

The Cisco QDD-2X100-CWDM4-S 400G 400G Optical Module is an advanced solution designed to meet the high-speed connectivity demands of modern data centers, enterprise networks, and service provider infrastructures. Featuring a QSFP-DD form factor and supporting up to 400 Gbps data rates, this optical module ensures efficient data transmission over single-mode fiber for distances up to 2 kilometers. Leveraging CWDM4 technology, it operates across four distinct wavelengths (1270 nm, 1290 nm, 1310 nm, 1330 nm), optimizing fiber utilization and reducing infrastructure costs. The module’s low power consumption and compliance with industry standards such as IEEE 802.3bs and QSFP-DD MSA make it a reliable and scalable choice for enhancing network performance and operational efficiency. Ideal for high-performance computing, backbone connections, and metro network applications, the Cisco QDD-2X100-CWDM4-S delivers superior performance and flexibility for today’s high-bandwidth environments.