Product Type | 100G to 25G Adapter |
Form Factor | Compact/Pluggable Module |
Application | Interface converter for QSFP28 to SFP28 |
Ideal Use Case | Data center and enterprise network interoperability |
Hot Swappable | Yes |
Plug-and-Play | Yes |
Power Requirement | Draws power from host QSFP28 port |
Manufacturer Part Number | CVR-QSFP28-SFP25G= |
CISCO CVR-QSFP28-SFP25G= 100G to SFP25G Adapter


Key Benefits

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- Allows network operators to easily integrate 25G optics into existing 100G infrastructure without replacing core hardware
- TAA compliance makes it suitable for government and regulatory-sensitive environments
- Manufactured in Taiwan, ensuring a high standard of quality control and reliability
Product Overview
The CISCO CVR-QSFP28-SFP25G= adapter enables interoperability between QSFP28 100G ports and SFP28 25G modules, making it ideal for data center and enterprise environments. Its compact form factor helps address space limitations, while TAA compliance ensures it meets regulatory standards for government deployments. Manufactured in Taiwan, this adapter allows for cost-effective hardware reuse and simplifies network upgrades by avoiding full equipment replacement.
Specifications
Product Overview
Wireless Features
Wireless Capability | No |
Compliance & Origin
Country of Origin | Taiwan |
TAA Compliant | Yes |
RoHS Compliant | Yes |
Certifications | CE, FCC, UL |
EMI/EMC Standards | Compliant with Cisco EMI/EMC specs |
Advanced Security Features
Security Features | Depends on host system; adapter has no active security components |
Interfaces
Host Interface | QSFP28 |
Target Interface | SFP28 |
Port Type | Modular Adapter |
Data Rate (Input) | Up to 100 Gbps |
Data Rate (Output) | Up to 25 Gbps |
Supported Technologies | Ethernet |
Compatibility | Cisco switches and routers with QSFP28 ports |
Media Type Supported | Varies depending on SFP28 module used |
Signal Conditioning | Pass-through (no active signal regeneration) |
Physical & Environmental
Dimensions (W x D x H) | 18.35 mm x 72.4 mm x 8.5 mm (approx) |
Weight | Approximately 25 grams |
Operating Temperature | 0°C to 70°C (32°F to 158°F) |
Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
Relative Humidity (Operating) | 5% to 85% non-condensing |
MTBF | Over 1,000,000 hours |
Cooling | Passive (uses host system airflow) |
Cloud Management & Licensing
Cloud Managed | No |
Licensing Requirement | No additional licensing required |