| NO. | Brand | Compatible P/N | Remarks |
| 1 | Cisco | SFP-25G-ER40-S | |
| 2 | Arista Networks | SFP-25G-ER40 | |
| 3 | Brocade | 25G-SFP28-ER40 | |
| 4 | HPE Aruba | S0V69A | |
| 5 | Juniper | 25GBASE-ER | |
| 6 | Dell | 25GBASE-ER |
| Cisco Compatible | SFP-25G-ER40-S | Vendor Name | HYTOPTODEVICE |
| Form Factor | SFP28 | Max Data Rate | 25Gbps |
| Wavelength | 1310nm | Max Distance | 40km |
| Connector | Duplex LC | Transmitter Type | EML |
| Cable Type | SMF | Receiver Type | APD |
| TX Power | 0~+6dBm | Receiver Sensitivity | < -19dBm |
| Max. Power Consumption | ≤2W | DOM/DDM | Fully Supported |
| Protocols | MSA Compliant, SFF-8431, SFF-8432, SFF-8472, CPRI, eCPRI | Operation Temperature | 0 to 70°C (32 to 158°F) |
Standardized maintenance stabilizes SFP28 25G ER long-reach fiber links, reduces module failure rates, and simplifies long-term network operation and management for importers and distributors.
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 switch racks to prevent electrostatic discharge damage and preserve module performance.
This module utilizes a high-sensitivity APD receiver. Direct short-distance connection without attenuation will permanently damage the APD component. * For transmission distances under 25 km (including lab environments), a matching optical attenuator (typically 5dB to 15dB) must be installed at the Rx port.
Always measure the incoming light with an optical power meter before connection; ensure the received optical power is strictly below -5dBm
Dust and oil contamination are the leading causes of unstable 25G links and high bit error rates. Keep dust caps on all idle ports, and always clean LC/UPC fiber end-faces with a professional fiber cleaning pen before docking to ensure optimal optical transmission.
RS-FEC (Forward Error Correction) is essential for stable 25G long-distance transmission. Users must explicitly enable RS-FEC (IEEE 802.3by Clause 91) on the host switch ports at both ends of the link. Failure to enable FEC may result in excessive CRC errors or failure to establish a link.
This SFP28 25G ER transceiver exclusively supports G.652 or G.657 Single-Mode Fiber (SMF). Multimode fiber (OM3/OM4) will cause severe signal attenuation and link failure. Furthermore, the physical optical interface only accepts standard LC/UPC (blue) connectors; LC/APC (green) angled polished connectors are incompatible and will cause permanent interface damage.
The module supports MSA-compliant hot-swapping for seamless plug-and-play operation. However, it is highly recommended to administrative shutdown the port via CLI before removing the module. Avoid frequent, rapid plugging and unplugging to prevent gold-finger wear and host slot fatigue.
This product is certified as a Class 1 Laser Product. When the module is powered on and operational, never look directly into the optical ports or the connected fiber end-faces with the naked eye or unapproved optical instruments to avoid irreversible laser radiation damage to eyesight.
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.
“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:
ISO 9001: Certified quality management and production consistency.
CE & FCC: Fully compliant for seamless Global Market Access.
RoHS: Committed to environmental responsibility and hazardous material control.
Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.
Certified Quality. Global Standards. Guaranteed Performance.
