Cisco Compatible Transceivers
Cisco Compatible QSFP-100G-B20U4 & QSFP-100G-B20D4 | 100G BiDi QSFP28 20km LC Simplex
Buy Cisco compatible QSFP-100G-B20U4 and QSFP-100G-B20D4 100G BiDi QSFP28 transceiver pair for Cisco Nexus and ASR platforms. LC simplex SMF 20km optical modules.
Cisco Compatible QSFP-100G-B20U4 & QSFP-100G-B20D4
100GBASE BiDi QSFP28 Transceiver Pair | 20km LC Simplex SMF | Upstream & Downstream
Product Overview
The Cisco compatible QSFP-100G-B20U4 and QSFP-100G-B20D4 are a matched pair of high-performance 100GBASE BiDi QSFP28 optical transceivers designed for long-distance 100 Gigabit Ethernet transmission over a single strand of single-mode fiber (SMF).
Using advanced BiDi (Bidirectional) optical technology, these modules enable simultaneous transmit and receive communication over one simplex LC fiber, significantly reducing fiber usage and deployment costs.
The transceiver pair supports transmission distances up to 20 kilometers and is ideal for:
- Data center interconnects (DCI)
- Metro aggregation networks
- ISP and telecom infrastructure
- Enterprise backbone connectivity
- Fiber-constrained deployments
- Cloud computing environments
- Carrier Ethernet applications
The QSFP-100G-B20U4 operates as the upstream module, while the QSFP-100G-B20D4 operates as the downstream module. Both modules must be used together in matched pairs.
Key Features
- Supports 100GBASE BiDi Ethernet
- QSFP28 hot-pluggable form factor
- Single-fiber bidirectional transmission
- LC simplex optical connector
- Up to 20km transmission over SMF
- Matched upstream/downstream wavelength pair
- Reduced fiber infrastructure requirements
- Integrated Digital Optical Monitoring (DOM)
- Low power consumption
- Fully compliant with QSFP28 MSA standards
- 100% tested for Cisco compatibility
Transceiver Pair Information
Part Number | Description |
|---|---|
QSFP-100G-B20U4 | 100G BiDi QSFP28 Transceiver, 20km Upstream, LC Simplex SMF |
QSFP-100G-B20D4 | 100G BiDi QSFP28 Transceiver, 20km Downstream, LC Simplex SMF |
These modules are designed to work together as a BiDi optical pair.
Compatible Cisco Platforms
The Cisco compatible QSFP-100G-B20U4 and QSFP-100G-B20D4 are compatible with a wide range of Cisco networking platforms including:
Cisco Nexus Series
- Cisco Nexus 3232C
- Cisco Nexus 93180YC-EX
- Cisco Nexus 9336C-FX2
- Cisco Nexus 9364C
- Cisco Nexus 9500 Series
Cisco Catalyst Series
- Cisco Catalyst 9500 Series
- Cisco Catalyst 9600 Series
Cisco ASR & NCS Series
- Cisco ASR 9000 Series
- Cisco NCS 540 Series
- Cisco NCS 5500 Series
Cisco UCS Platforms
- Cisco UCS Fabric Interconnect 6400 Series
- Cisco UCS X-Series
- Cisco UCS C-Series Rack Servers
Cisco MDS Storage Networking
- Cisco MDS 9700 Series
Compatibility may vary depending on Cisco hardware model and software version.
Technical Specifications
Parameter | QSFP-100G-B20U4 | QSFP-100G-B20D4 |
|---|---|---|
Form Factor | QSFP28 | QSFP28 |
Data Rate | 100Gbps | 100Gbps |
Optical Type | BiDi | BiDi |
Fiber Type | SMF | SMF |
Connector Type | LC Simplex | LC Simplex |
Reach | 20km | 20km |
Transmission Direction | Upstream | Downstream |
DOM Support | Yes | Yes |
Hot Swappable | Yes | Yes |
Compliance | QSFP28 MSA | QSFP28 MSA |
Product Advantages
Single-Fiber 100G Connectivity
BiDi technology enables transmit and receive signals over one strand of fiber.
Reduced Fiber Infrastructure Cost
Minimizes fiber consumption and simplifies cabling deployment.
Long-Distance 100G Transmission
Supports reliable 100GbE connectivity up to 20km.
High-Density Data Center Deployment
Ideal for scalable 100G architectures and fiber-limited environments.
Proven Cisco Compatibility
Fully tested with Cisco switches, routers, and transport platforms.
Typical Applications
- Data center interconnects
- Metro access networks
- ISP aggregation infrastructure
- Telecom backbone deployments
- Enterprise campus networking
- Carrier Ethernet transport
- Fiber-constrained network environments
- Cloud infrastructure connectivity
Quality Assurance
Every Cisco compatible QSFP-100G-B20U4 and QSFP-100G-B20D4 module undergoes:
- Optical signal testing
- Cisco interoperability verification
- DOM functionality validation
- Wavelength calibration testing
- Reliability and aging stress testing
Ordering Information
Part Number | Description |
|---|---|
QSFP-100G-B20U4 | Cisco Compatible 100G BiDi QSFP28, LC Simplex SMF, 20km Upstream |
QSFP-100G-B20D4 | Cisco Compatible 100G BiDi QSFP28, LC Simplex SMF, 20km Downstream |
FAQ
Do QSFP-100G-B20U4 and QSFP-100G-B20D4 need to be used together?
Yes. These modules are designed as a matched BiDi optical pair.
What transmission distance is supported?
They support up to 20 kilometers over single-mode fiber.
What connector type do they use?
Both modules use LC simplex connectors.
What is the advantage of BiDi optics?
BiDi optics reduce fiber usage by transmitting and receiving over a single fiber strand.
Do these modules support DOM monitoring?
Yes. Digital Optical Monitoring (DOM) is supported.
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