Are your optical modules compatible with Cisco, Huawei, Arista, and Juniper?

Yes. All HYTOPTODEVICE optical modules are 100% compatible with major brands including Cisco, Huawei, Arista, and Juniper switches and routers, with no configuration changes required.

Are your modules new or refurbished?

All HYTOPTODEVICE modules are brand new, original manufactured products. We do not sell refurbished or used optical modules.

Do your optical modules support DDM/DOM monitoring?

Yes. Our optical modules support Digital Diagnostic Monitoring (DDM/DOM), allowing real-time monitoring of temperature, voltage, current, TX power, and RX power.

What is your warranty policy?

HYTOPTODEVICE provides a standard warranty on all optical modules. Please contact our sales team for specific warranty terms and conditions.

Do you ship internationally from Shenzhen, China?

Yes. We ship worldwide from our facility in Shenzhen, China. International shipping is available for all orders including bulk and OEM orders.

Cisco Compatible 100BASE-ZX 120km SFP Transceiver Module | 155M 1550nm SMF Duplex LC Bulk & Wholesale | HYTOPTODEVICE

Get factory-direct Cisco compatible 100BASE-ZX SFP transceiver module. Featuring 1550nm wavelength and 120km single-mode long-distance transmission with DDM monitoring, this universal SFP transceiver delivers stable 100Mbps links for multi-brand network devices, ideal for bulk wholesale and ultra-long network projects. support private label, custom EEPROM programming and OEM for global importers,distributors and system integrators.

NO.	Brand	Compatible P/N	Remarks
1	Cisco	Generic
2	H3C	Generic
3	HPE（H3C）	Generic
4	Juniper	Generic
5	Extreme	Generic
6	Dell	Generic
7	Brocade	Generic
8	Huawei	Generic

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Description

Bulk Wholesale Cisco Compatible 100BASE-ZX SFP Transceiver Module, 1550nm 120km SMF Bulk Wholesale | HYTOPTODEVICE

Product Overview

HYTOPTODEVICE Cisco compatible 100BASE-ZX 120km SFP transceiver module complies with global MSA industry standards and supports hot-swappable deployment. It features 100% compatibility with mainstream network devices including Cisco, Huawei, Juniper, Arista, Brocade and more, with compatibility video available upon request. Equipped with a high-performance 1550nm DFB laser and high-sensitivity receiver, this universal SFP transceiver provides steady 100Mbps data transmission up to 120km over single-mode fiber via duplex LC interface. Every module undergoes strict factory calibration and aging tests for plug-and-play, error-free operation.

Built with DDM real-time monitoring and ultra-low power consumption (＜1W), this 120km long-haul transceiver module delivers reliable ultra-long fiber connectivity. Featuring stable performance, universal multi-device compatibility and outstanding cost performance, it is the ideal bulk replacement solution for enterprise long-distance network construction, renovation and global wholesale procurement.

Key Technical Specifications

Cisco Compatible	SFP-M55-1BLD	Vendor Name	HYTOPTODEVICE
Form Factor	SFP	Max Data Rate	100Mbps
Wavelength	1550nm	Max Distance	120KM
Connector	Duplex LC	Transmitter Type	DFB 1550nm
Cable Type	SMF	Receiver Type	PIN
TX Power	0~+5dBm	Receiver Sensitivity	< -34.0dBm
Power Consumption	≤1W	Receiver Overload	-8.0dBm
Protocols	IEEE802.3ab, GR-468, MSA Compliant	Operation Temperature	0 to 70°C (32 to 158°F)

For detailed technical specifications, please refer to the Datasheet

Usage Guidelines & Best Practices

Fiber & Port Matching

Use standard G.652.D duplex single-mode fiber (SMF) with LC-PC/UPC connectors. Multimode fiber is not supported and will fail to reach 80km. Ensure the SFP port supports 100Mbps mode before insertion.
Installation & Hot-Swap Rules

Supports MSA-compliant hot-swapping. Insert/remove gently without powering down the device. Keep dust caps on unused LC ports and avoid frequent re-plugging.
Link Loss Budget

Offers a 34dB link budget for 80km reach (including connectors/splices). If link flapping occurs, inspect and clean optical interfaces.
Operating Environment

Commercial grade: 0°C to 70°C in indoor environments. Keep away from extreme heat, moisture, and dust for long-term stability.
Real-Time Monitoring (DDM)

Use integrated SFF-8472 DDM to monitor Tx/Rx power, temperature, and voltage in real time to prevent sudden outages.
Optical Attenuation (Crucial)

Never direct-connect! Since Tx reaches up to +5 dBm, install a 15–20 dB inline attenuator at the Rx port during lab/short-link testing to keep input power below -8 dBm and prevent receiver burnout.

For detailed operation instructions, please refer to the User Guide.

Full Compatibility List & Supported Network Hardware

1. Supported Hardware & Firmware

This Cisco compatible100BASE-ZX SFP transceiver module adopts universal EEPROM firmware with broad authentication compatibility. It supports zero-alarm, plug-and-play operation on all mainstream SFP-based fast Ethernet devices, serving as a universal replacement transceiver module for multi-brand network upgrades and batch renewal.

Universal fast Ethernet SFP switching and routing devices
Enterprise access, aggregation and core layer network platforms
Industrial switches and long-distance transmission equipment
All network hardware supporting standard 100BASE-ZX SFP transceiver module protocols

2. Multi-Brand Cross Compatibility

Compliant with universal MSA standards, this 100BASE-ZX 120km SFP transceiver works stably with H3C, HPE, Juniper and other mainstream devices. It adapts to mixed-vendor networks and meets bulk SFP transceiver procurement demands.

3. Free Value-Added Services

We offer exclusive free value-added services for all sfp modules to reduce your project deployment and maintenance costs.

Custom firmware for multi-device compatibility
Free sample testing before bulk orders
Complete test reports for project acceptance
Strict batch consistency quality control
Cost-effective wholesale for large-scale deployment

Free custom EEPROM programming for special and legacy network environments

Primary Application Scenarios

Cross-city ultra-long 100Mbps single-mode fiber data transmission (up to 120km)
Multi-branch enterprise cross-region WAN and backbone network interconnection
Legacy fast Ethernet network renovation and universal transceiver module batch replacement
ISP long-distance access layer and backbone fiber link deployment
Large-scale park, campus and industrial long-distance network construction projects

Connectivity Solutions(Applications)

This compatible SFP transceiver module follows 100BASE-ZX standards. It delivers stable 100Mbps 120km single-mode fiber links, serving as a cost-effective SFP transceiver solution for mainstream brand long-distance network deployment.

The Core Feature

1. Low-Power Data Center Efficient Connectivity

With ultra-low power consumption below 1W, this 100BASE-ZX SFP Transceiver module provides stable, cost-effective Fast Ethernet connectivity. It is an economical solution for enterprise LAN, SAN and data center Ethernet applications.

HYTOPTODEVICE cost-effective 100BASE-ZX 80KM replacement module,factory direct SFP transceiver bulk supply

2.Plug-and-Play Compatibility: Zero-Alarm Host Interoperability

Every transceiver module is fully tested on target brand switches for reliable interoperability. Custom firmware matches official authentication, enabling plug-and-play SFP transceiver operation without alarms or error logs.Specific Compatibility Video available upon request.

3.Engineered for Reliability: Rigorously Tested, Unconditionally Proven

All SFP transceiver module units pass full optical and aging tests, supporting real-time DDM operational diagnosis. It is a high-cost-performance replacement for enterprise long-distance network bulk procurement and upgrade projects.

HYTOPTODEVICE MSA Compliant Replacement 100BASE-ZX SFP Optical Transceiver Full Tested

FAQ

Q1: Is this generic 120km transceiver module compatible with mainstream brand network devices?

A: Yes. This universal 100BASE-ZX transceiver module adopts standard MSA firmware, which is automatically identified by Cisco, H3C, Juniper, Dell and other mainstream devices, supporting plug-and-play without alarms or manual configuration.

Q2: Can this 120km long-range module work on 1G dual-rate SFP ports?

A: Absolutely. The 100Mbps transceiver module supports adaptive speed negotiation and runs stably on standard 1G SFP dual-rate ports. It is not applicable for 10G SFP+ slot interfaces.

Q3: What guarantees the 120km ultra-long stable transmission performance?

A: This long-haul transceiver module features a 34dB high optical power budget, with stable 0~+5dBm transmit power and -34dBm high receiving sensitivity. It effectively resists long-distance line attenuation to ensure error-free 100Mbps transmission at 120km full range.

Q4: Why is single-mode fiber mandatory for 120km transmission?

A: This transceiver module is designed for single-mode fiber scenarios. Multimode fiber causes severe wavelength dispersion and extra loss at 1550nm, resulting in unstable links and packet loss, failing to support 120km ultra-long transmission.

Q5: What risks exist for undamped short-distance deployment?

A: For links within 10km, direct deployment without an attenuator will cause receiver overload. Excessive optical power will saturate the receiving chip, trigger signal distortion, and even burn out the transceiver module hardware.

Q6: How to deploy this module correctly for short links?

A: All links below 10km must be equipped with a 15-20dB optical attenuator. This 120km high-power transceiver module requires matched attenuation to avoid receiver saturation and stabilize short-link operation.

Q7: Does this universal transceiver module support DDM real-time monitoring?

A: Yes. All finished modules comply with SFF-8472 standards, with built-in DDM/DOM function to real-time monitor optical power, temperature, voltage and laser current for daily network maintenance.

Q8: What is the stable working receiving power range?

A: The effective receiving power range is -33dBm to -8dBm, with the optimal stable range of -20dBm to -10dBm. The 28dB power margin adapts to complex long-distance networking loss and interference.

Q9: What core components are adopted for ultra-long transmission?

A: This bulk transceiver module uses a premium 1550nm DFB laser, featuring stable wavelength output, low power consumption and low attenuation, perfectly matching 120km single-mode fiber long-distance networking.

Q10: What are the advantages of 120km 100BASE-ZX module over 80km version?

A: Compared with 80km long-range modules, this 120km 100BASE-ZX transceiver module extends the maximum transmission distance, meeting longer cross-city and ultra-long backbone networking demands with stronger scene adaptability.

Q11: Is industrial temperature grade available for harsh environments?

A: Custom industrial-grade modules are supported. The standard commercial version works at 0°C~70°C, while the industrial version supports -40°C~+85°C wide-temperature operation for outdoor and harsh industrial scenarios.

Q12: What is the power consumption level of this long-range module?

A: Optimized circuit design ensures ultra-low power consumption below 1W. It maintains stable 120km ultra-long transmission while reducing long-term network operating energy consumption.

Packaging & Custom OEM Solutions

Each SFP module is factory-sealed in ESD-shielding, anti-static packaging—individually protected, quality-checked, and ready to ship the moment you place your order. We understand that distributors, wholesalers, and system integrators need more than just a product. That's why our flexible OEM and ODM programs include custom branding, private-label packaging, and your own logo on every unit—so you can grow your brand with confidence, without compromising on quality or lead time.

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:

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.