Cisco SFP-25G-T Full Official Product Description
1. Part Number & Naming Definition
Official Full Name
Cisco 25GBASE-T SFP28 Copper Twisted-Pair Transceiver Module with Digital Diagnostic Monitoring Support
SKU:SFP-25G-T
Naming Breakdown
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SFP28: 25 Gigabit Small Form-factor Pluggable hot‑swappable transceiver compliant with SFF‑8402 SFP28 MSA specification
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25G: Supports 25.78125 Gbps serial bit rate for 25 Gigabit Ethernet
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T: Twisted Pair; IEEE 802.3bz 25GBASE-T standard over balanced copper cabling
Core Product Positioning
The Cisco SFP-25G-T is a hot‑swappable commercial-grade SFP28 copper transceiver designed for 25 Gigabit Ethernet transmission over Category 8 shielded twisted-pair copper cabling. It enables smooth 25G migration in enterprise campuses, data center rack access, and server environments that utilize structured copper cabling instead of fiber links. This module integrates built-in signal processing circuitry to support high-speed transmission over short-range copper infrastructure. Integrated DDM enables continuous real-time monitoring of module operating status.
Important Reminder: 25GBASE-T requires Cat.8 shielded twisted pair cables. Cat.6A or lower-grade copper cables cannot support stable 25G transmission.
2. Hardware & Software Compatibility
Supported Host Platforms
Cisco Nexus 9000 Series Switches; Catalyst 9000 Series Switches; UCS Fabric Interconnects and all other platforms equipped with SFP28 interfaces supporting 25 Gigabit Ethernet.
Verify Cisco official transceiver compatibility matrix and minimum firmware release before deployment.
Supported Operating Systems
NX-OS, IOS-XE releases supporting SFP28 MSA and SFF‑8472 digital diagnostic monitoring functions.
Supported Cable Type
Cat.8 shielded balanced twisted-pair copper cable only.
Connector
RJ45 electrical connector.
3. Physical & Electrical Performance Specifications
Form Factor
Hot‑swappable SFP28, compliant with SFF‑8402 MSA
Electrical Interface
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Supported Bit Rate: 25.78125 Gbps (25GBASE-T Ethernet)
Maximum Transmission Reach
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Up to30 metersover certified Cat.8 shielded twisted-pair copper cable
Electrical Performance
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Supports auto-negotiation and link training for stable 25G operation
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Adaptive equalization and crosstalk cancellation for copper media
Digital Diagnostics
DDM (Digital Diagnostic Monitoring) Supported
Monitors module internal temperature, supply voltage, transmit power consumption and internal operational status.
Environmental Operating Parameters (Commercial Grade)
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Operating Temperature:0°C ~ +70°C (32°F ~ 158°F)
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Storage Temperature: -40°C ~ +85°C (-40°F ~ 185°F)
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Relative Humidity: 5% – 95%, non‑condensing
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Maximum operating altitude: 3,000 meters
Typical Power Consumption
4. Supported Functional Capabilities
Ethernet Transport
Wire-speed full-duplex 25GBASE-T Ethernet; supports auto-negotiation
Layer 2 Protocol Support
802.1Q VLAN trunking, IEEE 802.3x pause frame flow control, LACP, STP/RSTP/MSTP, EtherChannel link aggregation
Interface Diagnostics
Link status detection, error counters, DDM real-time monitoring, link training status reporting, local loopback testing
High Availability
Supports hot-plug OIR online insertion and removal on compatible platforms; supports link redundancy via port-channels and spanning tree protocols
Operations & Management
NX-OS / IOS-XE CLI, SSH, SNMP v2c/v3, Syslog logging
5. Typical Deployment Scenarios
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Data center top-of-rack 25G server access over Cat.8 copper cabling
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Enterprise campus high-density server room 25G connectivity without fiber deployment
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Low-latency short-distance rack-to-rack interconnections using structured copper infrastructure
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Network upgrade projects leveraging existing Cat.8 copper cabling resources
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Lab and test environment 25 Gigabit Ethernet deployments
6. Regulatory & Compliance Certifications
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Safety Standards: UL 60950‑1, IEC/EN 60950‑1, CSA C22.2 No.60950‑1
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EMC Compliance: CE Mark, FCC Part 15 Class A, ICES‑003 Class A
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Industry Standards: IEEE 802.3bz, SFF‑8402, SFF‑8472
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Environmental: RoHS compliant, WEEE directive compliant
7. Standard Factory Package Contents
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Cisco SFP-25G-T SFP28 Copper Transceiver
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Hardware installation guide
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Safety and regulatory documentation
Cat.8 shielded RJ45 patch cables sold separately.
Model Comparison Reference
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SFP-25G-T: Commercial temperature, RJ45 Cat.8 copper, maximum 30m
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SFP-25G-SR-S: 850nm multi-mode optical SFP28 module
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SFP-25G-LR-S: 1310nm single-mode optical SFP28 module
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SFP-H25G-CUxxM: Passive 25G DAC direct attach copper cable
UNSPSC Classification Code
43222618 – Cisco SFP-25G-T 25GBASE-T copper SFP28 transceiver with DDM, hot‑swappable 25 Gigabit RJ45 module for data center and enterprise copper-based high-speed server access networking.
Hardware Warranty
Original Cisco transceivers are covered under Cisco limited hardware warranty; refurbished units follow respective reseller warranty terms.
Supplementary Note: Cisco does not manufacture official SFP-25G-T OEM part. This full description follows industry standard MSA 25GBASE-T SFP28 specification for quotation and documentation usage. If you need official PID-verified content, confirm availability via Cisco Transceiver Compatibility Matrix.
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