HYTOPTODEVICE SFP-10G-ER-S | Cisco Compatible 10GBASE-ER 1550nm 40km DOM SFP Transceiver

What Is Cisco Compatible SFP-10G-ER-S Optical Transceiver?

SFP+ Transceiver | Cisco Compatible 10GBASE-ER  Optical Transceiver Module(SMF, 1550nm, 40km, LC, DOM) | HYTOPTODEVICE
The Cisco compatible SFP-10G-ER-S is s an enterprise-level, hot-swappable 10GBASE-ER SFP+ optical transceiver, supporting up to 40km link lengths over LC Duplex Connector with SMF. The modules belong to Cisco’s "S-Class" (Smart/Standard) optics family,specifically optimized for mainstream enterprise LAN networks and data center architectures requiring long-range connections. Compliant with both SFP+MSA and IEEE 802.3ae, SFF-8472, SFF-8431, SFF-8432, DOM supported.

Key Technical Specifications of 10GBASE-ER Optical Transceiver

Full Compatibility List and Supported Devices of  10G Fiber Optic Transceiver
   One of the biggest advantages of our third-party optical transceiver is the strong brand compatibility,which helps enterprises cut hardware costs without sacrificing performance. Worried about compatibility? Don't be. We deliver verified results on real hardware. Video proof available upon request. Our backbone network fiber transceiver is fully tested and certified to work seamlessly with the following Cisco equipments:

• Cisco Catalyst Series Switches: Fully compatible with Catalyst 9200, 9300, 9500, 3850, 3650, 2960-X, and 2960-XR Series switches.

• Cisco Nexus Data Center Switches: Fully compatible with high-density Nexus 9000, 7000, 5000, and 3000 Series switches (e.g., Nexus 93180YC-FX).

• Cisco Enterprise Routers: Compatible with standard 10GbE SFP+ interface modules on Cisco ASR 1000 Series, ISR 4400 Series, and ISR 4300 Series routers.

• Cisco Security Appliances: Fully compatible with Cisco Firepower 2100 and 4100 Series firewalls, as well as ASA 5585-X appliances.

Main Application Scenarios of SFP 10G ER

• Extended Corporate Campus Backbones: Links distribution layer edge switches to core switching fabric over long-distance building-to-building single-mode fiber backbones up to 40km apart.

• Metropolitan Area Networks (MAN): Connects municipal offices, regional centers, or service provider points of presence (PoPs) scattered across a city infrastructure.

• Data Center Leaf-Spine Architecture: Provides high-bandwidth, long-range 10G Ethernet connections between top-of-rack leaf switches and core spine layers.

  Technical Warning: When testing or deploying this 40km single mode fiber module over short distances (typically less than 20km), an optical attenuator (6dB to 9dB) must be used. Failure to attenuate the signal may cause permanent damage to the receiver due to optical overload.


Connectivity Solutions(Applications) of 10G ER SFP Fiber Optic Module

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FAQ FOR 10Gbps SFP-ER Single Mode Module

Q1: Will HYTOPTODEVICE compatible SFP-10G-ER-S void Cisco switch warranty?
A1: Installing HYTOPTODEVICE Cisco compatible SFP-10G-ER-S will never void your Cisco switch warranty. Protected by the Magnuson-Moss Warranty Act in the US, Cisco cannot cancel hardware warranty merely for using qualified third-party SFP transceivers. As a professional optical module manufacturer, HYTOPTODEVICE’s factory-certified SFP-10G-ER-S serves as a cost-saving OEM replacement for original Cisco transceivers for enterprise and data center projects.
 
Q2: What transmission distance can HYTOPTODEVICE SFP-10G-ER-S reach? 
A2: HYTOPTODEVICE SFP-10G-ER-S is a 10GBASE-ER SFP+ transceiver supporting up to 40km transmission over standard OS2 single-mode fiber. Equipped with stable 1550nm DFB laser to reduce fiber attenuation, this Cisco compatible module is widely used in inter-building network, metro fiber links and remote data center interconnection.
 
Q3: What is the difference between Cisco SFP-10G-ER and SFP-10G-ER-S? Can HYTOPTODEVICE replace both?
A3: HYTOPTODEVICE provides interchangeable compatible modules for both two models, their core specs including 10G speed, 1550nm wavelength and 40km reach keep consistent, only differ in protocol compatibility:
 
- SFP-10G-ER: Multi-protocol version, supports Ethernet, WAN PHY and OTN for telecom carrier network;
- SFP-10G-ER-S: Simplified S-Class, designed only for standard enterprise Ethernet to cut purchase cost.
Customers pick HYTOPTODEVICE SFP-10G-ER-S to slash procurement cost compared with genuine Cisco parts.
 
Q4: Do I need optical attenuator to test HYTOPTODEVICE SFP-10G-ER-S on short fiber? 
A4: An inline 5dB~10dB optical attenuator is required when running HYTOPTODEVICE SFP-10G-ER-S on fiber below 15km. The high-power 1550nm long-distance laser inside ER-S module will overload receiver photodiode without attenuation, leading to permanent port damage. Follow HYTOPTODEVICE’s installation tips to avoid equipment damage during field testing.
 
Q5: How does HYTOPTODEVICE ensure full Cisco plug-and-play compatibility for SFP-10G-ER-S?
A5: HYTOPTODEVICE avoids transceiver unrecognized alarms via strict production inspection: Every batch of SFP-10G-ER-S is physically tested on real Cisco Catalyst, Nexus and ISR switches instead of virtual software simulation. Our engineers customize DOM data, vendor ID and part codes matching original Cisco signature. All finished modules complete 0℃~70℃ high-low temperature burn-in test before delivery to realize seamless plug and play. Factory direct supply with bulk discount and technical after-sales support.
 
Q6: Does HYTOPTODEVICE SFP-10G-ER-S support DOM digital diagnostic?
A6: All HYTOPTODEVICE Cisco compatible SFP-10G-ER-S feature full DOM/DDM function. Users check real-time TX/RX power, working temperature and voltage directly via Cisco switch CLI, same monitoring performance as original Cisco transceiver.
 
Q7: Which fiber cable works with HYTOPTODEVICE SFP-10G-ER-S?
A7: HYTOPTODEVICE SFP-10G-ER-S fits only OS2 single-mode fiber with LC duplex connector, incompatible with OM series multimode fiber. For 10G short-range multimode connection, select HYTOPTODEVICE SFP-10G-SR compatible transceivers.
 
Q8: Is HYTOPTODEVICE Cisco compatible SFP-10G-ER-S capable of auto-negotiating down to 1Gbps?
 A8: The HYTOPTODEVICE SFP-10G-ER-S is a fixed 10Gbps-rate SFP optic without multi-rate auto-negotiation or 1Gbps fallback capability. If you require 40km long-haul 1G fiber connectivity, select standalone 1000BASE-EX compatible SFP modules instead.

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.

• 100% MSA-compliant modules with Cisco, Huawei,Dell,Juniper, and Arista compatibility
• ISO 9001:2015 certified manufacturing facility in Shenzhen
• Average lead time of 3–5 business days with DHL/FedEx express options
• Dedicated pre-sales engineering support for custom configurations
• Actual hardware,actual switches,actual results.we publish compatibility test video,eliminate compatibility anxiety. you can watch before you buy. 
• We can provide inspection and shipping videos to make you feel as if you are right here with the product.
• Private Label support - EEPROM / firmware customization support

“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.

Rigorous Industrial Product Testing

   

100% 3rd Party Compatible

Partial Test Demonstration

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