Cisco SFP-10G-ER40 Compatible SFP+ 10G ER Optical Transceiver Module | HYTOPTODEVICE

What Is Cisco Compatible SFP-10G-ER40 Optical Transceiver?

SFP+ Transceiver | Cisco Compatible 10GBASE-ER  Optical Transceiver Module(SMF, 1550nm, 40km, LC, DOM) | HYTOPTODEVICE
The Cisco compatible SFP-10G-ER40 is s a premium, hot-swappable 10GBASE-ER SFP+ optical transceiver, supporting up to 40km link lengths over LC Duplex Connector  with SMF. The module utilizes 1550nm EML laser, making it the definitive choice for aggregate campus links, metropolitan area networks (MANs), and backhaul infrastructure. 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 10G long-haul optical transceiver is fully tested and certified to work seamlessly with the following Cisco equipments:

• Cisco Catalyst Switches: Catalyst 9200, 9300, 9500, 3850, 3650, 4500-E, and 6800 Series.

• Cisco Nexus Data Center Fabrics: Nexus 9000, 7000, 5000, and 3000 Series (e.g., Nexus 93180YC-FX).

• Cisco Aggregation & Edge Routers: Cisco ASR 9000, ASR 1000 Series, ISR 4451-X, and ISR 4331.

• Cisco Adaptive Security Appliances: Cisco Firepower 2100/4100 Series and ASA 5585-X firewalls.
  
  

Main Application Scenarios of SFP 10G ER

• High-Span Metro Link Aggregation: Interconnects distributed municipal data networks, remote offices, or branch sites across city footprints up to 40km apart.

• Inter-Building Campus Backbones: Serves as the primary long-range fiber backhaul link for sprawling multi-facility university or corporate campuses.

• Off-Site Disaster Recovery (DR) Syncing: Drives continuous, low-latency storage data replication between primary operational centers and geographically isolated backup locations.

  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: Does using HYTOPTODEVICE compatible Cisco SFP-10G-ER40 transceiver void original Cisco switch warranty?
 A1: Installing HYTOPTODEVICE third-party compatible SFP-10G-ER40 will not invalidate your Cisco network switch warranty. Per the Magnuson-Moss Warranty Act, OEM vendors cannot cancel hardware warranties solely due to the use of qualified aftermarket compatible optical transceivers. Our Cisco-compatible 10G ER SFP modules comply with global warranty protection regulations for enterprise network deployments.
 
Q2: What’s the max transmission range of HYTOPTODEVICE Cisco SFP-10G-ER40 10G SFP transceiver?
 A2: HYTOPTODEVICE SFP-10G-ER40 delivers a certified maximum reach of 40km over standard SMF (single-mode fiber). Equipped with stable 1550nm EML (Electro-absorption Modulated Laser), this 10G ER transceiver offsets long-distance fiber signal loss to sustain stable 40km long-haul data transmission for Cisco networking setups.
 
Q3: Key technical differences between SFP-10G-LR vs HYTOPTODEVICE SFP-10G-ER40 Cisco compatible modules?
 A3: The core distinctions cover operating wavelength, laser specification and supported fiber distance for Cisco 10G SFP optics:
 
- Cisco SFP-10G-LR: 1310nm laser, max 10km transmission over single-mode fiber for short-to-medium campus links
- HYTOPTODEVICE SFP-10G-ER40: 1550nm high-power EML laser, rated up to 40km long-haul transmission for backbone fiber connections
 
Q4: Is an optical attenuator required for short-distance testing of HYTOPTODEVICE SFP-10G-ER40?
 A4: An inline 5dB–10dB optical attenuator is mandatory when running tests or deploying SFP-10G-ER40 on fiber runs shorter than 10~15km. Thanks to its high-output long-haul laser chip, direct short-cable connection without proper attenuation will cause irreversible damage to the receiving photodiode on Cisco switch ports.
 
Q5: How does HYTOPTODEVICE ensure full Cisco switch compatibility on SFP-10G-ER40 transceivers?
 A5: HYTOPTODEVICE guarantees 100% Cisco compatibility via real-device batch verification. Every SFP-10G-ER40 production lot undergoes live plug-and-play testing on genuine Cisco production switches instead of virtual software simulation, ruling out firmware identification, DOM reading and port recognition compatibility issues for enterprise networking use.

Q6: Does HYTOPTODEVICE compatible SFP-10G-ER40 come with complete DOM/DDM monitoring function?
 A6: All HYTOPTODEVICE Cisco-compatible SFP-10G-ER40 transceivers feature built-in full DOM (Digital Optical Monitoring / DDM) functionality. Network engineers can retrieve live runtime metrics including transmit optical power, receive signal strength, module working temperature and supply voltage straight from Cisco switch CLI with the  show interfaces transceiver details  command for real-time network troubleshooting.
 
Q7: Which fiber patch cord fits HYTOPTODEVICE SFP-10G-ER40 transceiver?
 A7: HYTOPTODEVICE SFP-10G-ER40 works exclusively with duplex LC-LC single-mode fiber patch cables. OS2 9/125µm single-mode fiber is the top recommended option to cut insertion loss and signal attenuation, securing stable full-spec 40km long-distance transmission performance on Cisco network links.
 
Q8: Is HYTOPTODEVICE Cisco compatible SFP-10G-ER40 capable of auto-negotiating down to 1Gbps?
 A8: The HYTOPTODEVICE SFP-10G-ER40 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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