| Type | Optical Transceiver Module |
| Form Factor | QSFP28 |
| Data Transfer Rate | 100 Gbps |
| Transceiver Type | 100GBASE-CWDM4 LITE |
| Max Transfer Distance | 2 km |
| Fiber Mode | Single-Mode Fiber (SMF) |
| Connector Type | LC duplex |
| Digital Optical Monitoring (DOM) | Supported |
| Hot Swappable | Yes |
| Power Consumption | ≤ 3.5 Watts |
| Weight | Approximately 75 grams |
Cisco 100GBASE CWDM4 LITE QSFP Transceiver, 2KM, 100Gbps

Key Benefits
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- Delivers ultra-fast 100Gbps speeds for bandwidth-intensive networking environments.
- Supports extensive 2KM range over single-mode fiber, ideal for mid-range data center interconnects.
- Form factor and TAA compliance ensure compatibility and suitability for secure IT deployments.
Product Overview
The Cisco 100GBASE CWDM4 LITE QSFP Transceiver, model QSFP-100G-SM-SR=, enables 100Gbps Ethernet connectivity across up to 2 kilometers via single-mode fiber (SMF). Operating within the 1276.1–1331 nm wavelength range, it is housed in a space-efficient QSFP form factor, combining performance with compact design. The module supports a wide temperature range (10–60°C) and meets TAA compliance, making it well-suited for secure government and enterprise networks. With production across multiple countries, it offers sourcing flexibility while delivering robust performance for demanding networking environments.
Specifications
Product Overview
Physical & Environmental
| Dimensions (H x W x D) | 13.9 mm x 18.35 mm x 72.4 mm |
| Operating Temperature | 10°C to 60°C (50°F to 140°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Humidity (Operating) | 10% to 85%, non-condensing |
| Humidity (Storage) | 5% to 95%, non-condensing |
| Enclosure Type | Metal housing |
Cloud Management & Licensing
| Plug and Play Compatibility | Yes |
| Cisco Network Management Compatibility | Yes – Compatible with Cisco IOS and Cisco DNA Center |
| Licensing Required | No |
Interfaces
| Interface | QSFP28 |
| Interface Type | Plug-in module |
| Connector | LC Duplex |
| Media Type | Optical Fiber |
| Wave Length | 1276.1 nm – 1331 nm |
| Ethernet Protocol Support | 100G Ethernet |
| Transmission Technology | CWDM (Coarse Wavelength Division Multiplexing) |
Compliance & Origin
| Country of Origin | China / Malaysia / Taiwan / United States |
| TAA Compliant | Yes |
| RoHS Compliant | Yes |
| EMC Compliance | EMC Directive 2014/30/EU |
| Safety Standards | IEC 60825-1, 21 CFR 1040.10 and 1040.11 |
| ISO Certified Manufacturing | Yes |
| Laser Class | Class 1 |
Advanced Security Features
| Secure Hardware ID | Yes |
| Authentication | EEPROM-based module authentication with Cisco platforms |