SFP-10/25G-CSR-S Cisco Compatible Dual-Rate 25G SFP28 Transceiver | 10/25GBASE-CSR 850nm 300m LC Multimode 25G SFP28 | HYTOPTODEVICE
Product Overview
Factory direct drop-in dual-rate replacement for Cisco original SFP-10/25G-CSR-S transceiver, it complies strictly with IEEE 802.3by 10/25GBASE-CSR and SFP28 MSA SFF-8402 industry standards. Equipped with premium long-distance 850nm VCSEL laser and duplex LC/UPC connector, it supports auto-adaptive 10.3125Gbps / 25.78125Gbps dual-rate transmission, breaking regular SR distance limits: 200m over OM3 / 300m over OM4 at 10G, 70m over OM3 / 100m over OM4 at 25G with RS-FEC enabledCisco. Featuring ultra-low power consumption and high-density port layout, the transceiver integrates complete DDM digital diagnostics to monitor real-time temperature, optical power and voltage for legacy campus, leaf-spine data center and virtual storage network operation.
Pre-flashed with Cisco IOS/NX-OS recognized vendor ID firmware, it runs true plug-and-play without triggering unsupported transceiver alerts or port lockdown, perfectly compatible with Cisco Nexus 9300/9500 leaf-spine data center switches, Catalyst 9400/9600 campus aggregation switches and 25G server HBAs. Widely deployed in legacy 10G fiber reuse TOR interconnection, 100G QSFP28 breakout networking, multi-tenant cloud gradual upgrade and enterprise long-distance multimode backbone transformation projects.
Key Technical Specifications
All optical and electrical parameters are factory-calibrated to fully match official Cisco SFP-10/25G-CSR-S datasheet standards. Optimized dual-rate adaptive circuit design and long-distance VCSEL laser components deliver consistent low-latency transmission, strong anti-interference capability and ultra-long multimode reach, fully solving legacy 10G fiber short-distance bottlenecks and meeting long-term stable commercial leaf-spine, campus and storage network large-volume Cisco dual-rate network bulk deployment demands.
| Cisco Compatible |
SFP-10/25G-CSR-S |
Vendor Name |
HYTOPTODEVICE |
| Form Factor |
SFP28 |
Max Data Rate |
25Gbps |
| Wavelength |
850nm |
Max Distance |
300m@OM4/200m@OM3 |
| Connector |
Duplex LC |
Transmitter Type |
VCSEL |
| Cable Type |
MMF |
Receiver Type |
PIN |
| TX Power |
-6.4~+2.4dBm |
Receiver Sensitivity |
< -11.9dBm |
| Max. Power Consumption |
≤1W |
DOM/DDM |
Fully Supported |
| Protocols |
SFF-8472, SFF-8024, SFF-8431, SFF-8432 |
Operation Temperature |
0 to 70°C (32 to 158°F) |
Usage Guidelines & Best Practices
Standardized handling and scientific deployment protect the precision internal chips and long-range laser of the 25G SFP28 dual-rate transceiver, avoid link packet loss and frequent flapping, and sustain long-term stable 10G/25G mixed-rate campus & leaf-spine data center transmission on Cisco IOS/NX-OS platforms.
1. Anti-Static Handling Protection
The transceiver’s long-distance laser diode and PCB circuits are highly sensitive to static electricity. Always wear a certified ESD anti-static wrist strap during installation, replacement and maintenance work inside Cisco switch racks to prevent static discharge damage to internal hardware and preserve complete dual-rate module performance.
2. Optical Port & Fiber Cleaning Maintenance
Keep the original protective dust caps installed on the LC optical ports when the module is idle or not in use. Before fiber connection, thoroughly clean the fiber end faces to remove dust, fingerprints and contaminants. Dirty ports and fiber ends will cause increased optical attenuation, packet loss and unstable 25G link transmission.
3. Standard RS-FEC Port Configuration
Enable RS-FEC forward error correction on Cisco Nexus leaf-spine switch and server HBA ports to unlock the module’s full 25G rated transmission distance. FEC is not required for 10G mode operation; with RS-FEC activated, the transceiver stably reaches 70m on OM3 fiber and 100m on OM4 fiber to guarantee sufficient link margin for long-distance legacy structured cabling.
4. Strict Fiber Type Matching
This dual-rate 25G SFP28 is exclusively engineered for high-bandwidth multimode fiber environments. Compatible with OM3, OM4 and OM5 multimode fiber with duplex LC/UPC connectors. Single-mode fiber, legacy OM1/OM2 orange multimode fiber cannot support standard dual-rate transmission and will cause severe signal loss and link dropouts. APC fiber cables are not recommended.
5. Standard Hot-Swap Operation Rules
The module supports MSA-standard hot-swap plug-and-play for online network maintenance without powering off Cisco switches. Avoid frequent repeated insertion and removal within a short time window, which causes mechanical abrasion to gold pins and host switch SFP28 ports, shortening overall service life in high-density leaf-spine racks.
6. Professional Laser Safety Specification
This product is a Class 1 safety-grade laser optical transceiver. When the module is powered on and working, do not directly observe the optical port or the end face of connected fiber with naked eyes, to avoid laser radiation damage to human eyes and comply with industrial laser safety operation standards.
Full Compatibility List & Supported Devices
1. Compatible Cisco Device Models
All HYTOPTODEVICE SFP-10/25G-CSR-S dual-rate 25G SFP28 pass full real-machine testing on mainstream Cisco data center, campus and virtual storage hardware, eliminating compatibility faults, system error logs and port alarms. Plug-and-play hot-swap dual-rate design enables seamless legacy 10G to 25G mixed-rate network bulk upgrade and capacity expansion.
• Cisco Nexus 93180YC-FX / 9364C-GX Leaf-Spine Data Center Switches: Fully compatible with all SFP28 port equipped leaf-spine switches for dual-rate 10G/25G server interconnection
Cisco.
• Cisco Catalyst 9400 / 9600 / 9800 Campus Aggregation Switches: Optimized for enterprise campus long-distance multimode fiber backbone dual-rate transmission and access layer server linkage.
• Cisco UCS C220/C240 Server 25G HBAs & Storage Controllers: Stable adaptation for virtualized storage SAN uplink optical ports for hybrid data center deployment.
• Cisco SFP28 port multimode media converters
2.Multi-Brand Cross Compatibility
This universal dual-rate 25G SFP28 supports mixed-vendor campus, storage and cloud data center network deployment, split into two hardware compatibility categories:
• Open-Brand Compatibility Works plug-and-play without custom coding for MSA standard open gear: MikroTik, TP-Link, D-Link, Fortinet, Zyxel 25G switches & server HBAs.
• Locked-Brand Compatibility Adaptable to locked enterprise hardware including Cisco, Juniper, Arista, HPE, H3C, Huawei, Dell, Custom EEPROM programming eliminates system recognition warnings.
3. Free Custom EEPROM & Bulk OEM Service
We provide free EEPROM firmware rewrite, Cisco IOS/NX-OS adaptive dual-rate vendor ID calibration and private label customized packaging for all 25G SFP28 bulk orders. Preload matched SFP-10/25G-CSR-S brand vendor ID data to remove transceiver error prompts; large-volume bulk orders enjoy exclusive discounted factory pricing with zero hidden service fees and priority production schedules for legacy fiber reuse network infrastructure projects.
Primary Application Scenarios
Cost-effective Cisco SFP-10/25G-CSR-S dual-rate replacement 25G SFP28 for leaf-spine data center & campus bulk procurement:
- Cisco Nexus/Catalyst switch to 10G/25G server HBA interconnection & original SFP-10/25G-CSR-S stock bulk replenishment
- 100G QSFP28 breakout 4×25G high-density virtualized multi-tenant data center construction
- Enterprise legacy OM3/OM4 multimode fiber backbone 10G to 25G mixed-rate network upgrade & capacity expansion
- Long-distance campus building interconnection and low-latency HPC computing cluster transmission links
- Enterprise legacy fiber reuse network standardization project bulk tender procurement
- Network equipment distributor wholesale stocking & customized OEM private label bulk orders
Connectivity Solutions(Applications)
1. 25G to 25G Switch-to-Switch Interconnection
Deploy paired dual-rate 25G SFP28 transceivers to build stable low-latency 10G/25G inter-switch links between Cisco core aggregation and leaf TOR switches, supporting large-scale bulk procurement for legacy fiber reuse cloud data center network upgrade projects.
2. 25G to 25G Switch with Server HBA Connection
Match Cisco SFP28 switches with dual-rate server HBA cards via 25G SFP28 transceivers, ideal for high-density server rack access and mass bulk purchase orders for virtualized enterprise mixed-rate data centers.
3. 100G to 4×25G Breakout Switch-to-Switch Link
Work with 100G QSFP28 breakout cables to split one 100G uplink port into four independent dual-rate 10G/25G channels, greatly improving leaf-spine rack port density and cutting overall legacy fiber infrastructure procurement cost for Cisco mixed-rate network bulk tender construction.
The Core Features
1. Legacy 10G Fiber 100G/25G Phased Upgrade Compatibility
Upgrade partial leaf-spine pods to 100G gear without replacing original OM3/OM4 10G fiber, seamlessly interconnect existing 10G and new 25G network segments. No full-scale fiber rewiring or switch hardware replacement required, significantly cutting Cisco legacy network upgrade bulk procurement expenditure.
2. Low-Power High-Density Dual-Rate 10G/25G Fast Deployment
Featured with low-power, high-density and auto-adaptive dual-rate 10/25G, this 25G SFP28 transceiver simplifies gradual bandwidth upgrade for campus and leaf-spine infrastructure. It maximizes limited interconnect port space without extra power supply investment for bulk mixed-rate network expansion projects.
3. Cisco IOS/NX-OS Dual-Rate Targeted Compatibility Verification
Every unit undergoes targeted real-machine dual-rate compatibility testing on Cisco Nexus/Catalyst hardware before shipment, which guarantees flawless mixed-rate campus and SAN operations. Pre-validated on Cisco IOS/NX-OS platforms to avoid on-site dual-rate recognition faults for large bulk legacy fiber reuse deployment projects.
4. Full Multi-Dimension Factory Testing Improves Long-Term Mixed-Rate Stability
Every batch passes complete optical performance, thermal stability and dual-rate full-load aging testing per factory standards. Strict defective product screening lowers field failure rates inside dense Cisco leaf-spine racks, improves long-term mixed-rate network reliability and reduces recurring maintenance labor costs for large bulk procurement clients.
FAQ
Q1: What is the difference between generic transceivers and brand-specific compatible optical modules?
A1: Generic transceivers lack Cisco IOS/NX-OS dual-rate matched EEPROM ID and trigger unsupported port alarms on Nexus switches. Our HYTOPTODEVICE dual-rate 25G SFP28 is pre-programmed with dedicated SFP-10/25G-CSR-S firmware, fully lab-tested zero-alarm plug-and-play. Perfect for Cisco legacy multimode fiber dual-rate 25G SFP28 bulk procurement.
Q2: Will deploying third-party dual-rate SFP28 modules void the original hardware warranty of Cisco switches?
A2: Cisco’s official hardware policy does not void chassis warranty for fully MSA-compliant optical transceivers. All HYTOPTODEVICE 25G SFP28 strictly follow SFP28 MSA standards with preloaded legitimate vendor ID, eliminating warranty dispute risks for enterprise mixed-rate network asset bulk investment.
Q3: Are these dual-rate transceivers interoperable with OCP Open Compute Project standard network interface cards?
A3: Yes. Our dual-rate 25G SFP28 passes full interoperability testing with mainstream OCP open rack server NICs, stable for standardized open hardware leaf-spine mixed-rate data center deployment.
Q4: Which fiber patch cord works with this dual-rate 25G SFP28 transceiver, LC duplex or MTP/MPO?
A4: This Cisco compatible dual-rate 25G SFP28 uses duplex LC/UPC port design, requiring standard LC duplex multimode cords (OM3/OM4/OM5). MTP/MPO cables cannot be directly plugged without split adapters, which introduces extra optical attenuation harmful to stable long-distance 10G/25G transmission.
Q5: Is optical port cleaning a mandatory step before installing the dual-rate 25G SFP28 transceiver?
A5: Yes, dust and oil residues on fiber end faces raise optical loss and cause unstable mixed-rate campus and data center links. We supply complimentary fiber cleaning kits for all large bulk orders of HYTOPTODEVICE dual-rate 25G SFP28.
Q6: Is OM5 fiber worth extra investment when deploying dual-rate 10/25G CSR transceivers?
A6: OM5 delivers wider bandwidth and longer transmission headroom for future 50G/100G iteration. OM4 meets basic 300m 10G / 100m 25G demands for short-term projects; OM5 is cost-efficient for long-life Cisco campus leaf-spine infrastructure upgrade.
Q7: What is the power consumption of this dual-rate 10/25G CSR 25G SFP28 transceiver?
A7: Our HYTOPTODEVICE dual-rate 25G SFP28 runs max ≤1.0W low power, optimized for dense fully populated Cisco Nexus leaf-spine racks without abnormal overheating, top selection for high-density legacy fiber reuse data center 25G SFP28 wholesale purchase.
Q8: Does this dual-rate transceiver support DDM/DOM digital diagnostic monitoring?
A8: Yes. Complete DDM/DOM monitoring is built into our 25G SFP28, supporting real-time tracking of optical power, temperature and voltage via Cisco NX-OS/IOS CLI for fast mixed-rate network troubleshooting.
Q9: Do you offer ultra-low latency customized 25G SFP28 transceivers for HFT high-frequency trading computing clusters?
A9: We provide customized ultra-low latency variants of this Cisco dual-rate 25G SFP28 with streamlined internal circuit layout to minimize signal delay, perfectly matching HFT financial cluster low-latency transmission demands for financial mixed-rate leaf-spine network 25G SFP28 bulk tender orders.
Q10: What wavelength does the dual-rate 10/25G CSR SFP28 transceiver adopt?
A10: This Cisco compatible 25G SFP28 uses long-range 850nm VCSEL light source, the standard wavelength for 10/25GBASE-CSR multimode long-distance transmission, matching OM3/OM4/OM5 multimode fiber specifications for Cisco campus and leaf-spine internal networking.
Q11: What optical transmitter chip is built inside this dual-rate 25G SFP28 CSR module?
A11: HYTOPTODEVICE only adopts brand-new industrial-grade long-distance 850nm VCSEL laser transmitters for every batch of dual-rate 25G SFP28, no recycled or B-grade defective laser components.
Q12: Can this dual-rate multimode 25G SFP28 transceiver be used for 5G wireless fronthaul CPRI/eCPRI signal transmission?
A12: No. This module is designed for 10/25GBASE-CSR Ethernet and does not support native CPRI/eCPRI fronthaul protocols. We provide dedicated customized optical transceivers for 5G fronthaul deployment upon special bulk project requests.
Why Network Engineers Choose HYTOPTODEVICE
HYTOPTODEVICE has supplied over 5000,000 optical transceiver modules to data centers, ISPs, and enterprise networks across 100+ countries since 2011. Every module undergoes a 72-hour burn-in test and full DDM/DOM validation before shipment.
- Up to 70% cost savings vs OEM, transparent pricing & flexible bulk rates, supported quality returns
- 100% real-device compatible with Cisco, Huawei,Dell,Juniper, and Arista
- ISO 9001:2015 Shenzhen factory, full lineup: 1.25G/10G/25G/40G/100G/200G/400G/800G/1.6T transceivers
- Ample stock, fast global DHL/FedEx shipping in 3–5 working days
- Free pre-sales engineering support for custom EEPROM & private label firmware
- Real switch test videos available for pre-purchase review; inspection & shipping videos provided per order
“Phenomenal performance. We deployed 200 HYTOPTODEVICE SFP modules to replace Cisco OEMs in our backbone network. Result? Zero compatibility issues and a 60% reduction in costs. Highly recommended for mission-critical networks."— Senior Network Engineer, Regional Telecom, Australia
Quality Certification & Compliance
At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final visual inspection, from IQC、IPQC、FQC to OQC, our processes ensure global compliance and reliability.
We adhere to rigorous standards for our SFP modules and network solutions:
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ISO 9001: Certified quality management and production consistency.
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CE & FCC: Fully compliant for seamless Global Market Access.
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RoHS: Committed to environmental responsibility and hazardous material control.
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Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.
Certified Quality. Global Standards. Guaranteed Performance.
Rigorous Industrial Product Testing
100% 3rd Party Compatible
Partial Test Demonstration
Others
