MikroTik S-85DLC05D 1.25G SFP Transceiver 850nm Dual LC Connector
Product Overview
The MikroTik S-85DLC05D is a compact, high-performance 1.25G multi-mode optical SFP transceiver module engineered for short-distance high-speed data transmission between enterprise switches, routers, server racks, and data center core gear. Operating at an 850nm wavelength, it supports data transfer rates up to 1.25 Gbps over multi-mode fiber (MMF) cable runs spanning up to 550 meters. Equipped with dual LC connectors and digital diagnostics monitoring (DDM), the MikroTik S-85DLC05D is factory-tested and fully compatible with all MikroTik Cloud Core Routers, CRS switches, and third-party networking hardware supporting standard SFP ports.
MikroTik S-85DLC05D Product Features
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MikroTik S-85DLC05D delivers stable data transfer speeds up to 1.25 Gbps (Gigabit Ethernet) over multi-mode optical fiber cabling.
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MikroTik S-85DLC05D supports short-range multi-mode fiber (MMF) transmission links up to 500–550 meters at an 850nm optical wavelength.
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MikroTik S-85DLC05D features dual LC optical connectors for secure, low-loss dual-strand fiber cable connections.
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MikroTik S-85DLC05D incorporates Digital Diagnostics Monitoring (DDM / DOM) for real-time tracking of optical power output, transceiver temperature, and operating voltage.
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MikroTik S-85DLC05D is hot-pluggable and fully compatible across MikroTik’s entire portfolio of SFP-equipped routers, cloud core switches, and MSA-compliant gear.
Product Condition
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MikroTik S-85DLC05D is sold as Brand New Sealed in original factory packaging with manufacturer security seals intact.
Specifications
| Parameter | Technical Specification Details |
| Model / SKU | S-85DLC05D |
| Data Rate / Speed | 1.25 Gbps (Gigabit Ethernet / SFP Standard) |
| Wavelength | 850 nm |
| Transmission Distance | Up to 500 Meters (0.5 km) on Multi-Mode Fiber |
| Fiber Media Type | Multi-Mode Fiber (MMF) |
| Connector Type | Dual LC Connectors (Duplex) |
| Transceiver Type | SFP (Small Form-factor Pluggable) |
| Diagnostics (DDM/DOM) | Supported (Real-time monitoring of voltage, temperature, and power) |
| Operating Temperature | Standard commercial range: 0°C to +70°C |
| Compatibility | All MikroTik SFP/SFP+ slots & MSA-compliant switch gear |
| Warranty Coverage | 1-Year Limited Manufacturer Hardware Warranty |
MikroTik S-85DLC05D Pros & Benefits
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Optimized for Short Runs: Perfect for high-speed server-to-switch and switch-to-switch links within the same room, data center, or rack cabinet.
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Hot-Pluggable Design: Allows seamless installation or replacement without powering down core switches or disrupting network uptime.
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Real-Time DDM Diagnostics: Enables network administrators to monitor optical power levels and operating temperatures directly via RouterOS or SwOS.
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Cost-Effective Multi-Mode Solution: Provides an economical optical interconnect option when utilizing existing multi-mode fiber cabling infrastructure.
MikroTik S-85DLC05D Variation Price Table
| Model Variant | Wavelength | Max Distance | Fiber Type | Price Range (KES) |
| MikroTik S-85DLC05D | 850 nm | 500 Meters | Multi-Mode (Duplex LC) | KSh 2,200 – KSh 3,200 |
| MikroTik S-31DLC20D | 1310 nm | 20 km | Single-Mode (Duplex LC) | KSh 2,500 – KSh 3,800 |
| MikroTik S-43DLC20D | 1310/1550 nm | 20 km | Single-Mode (BiDi / Simplex LC) | KSh 3,000 – KSh 4,500 |
| MikroTik S+85DSL03D | 850 nm (10G) | 300 Meters | Multi-Mode (SFP+ 10G) | KSh 6,500 – KSh 8,500 |
MikroTik S-85DLC05D Suitable Application Areas
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Data Center Interconnects: Links top-of-rack managed switches to core routing equipment over multi-mode fiber patches.
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Server Room Rack Connections: Bridges high-performance servers and storage arrays directly to network distribution switches.
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Intra-Building Fiber Distribution: Connects floor distribution closets within the same enterprise building over multi-mode cable runs.
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Telecom & WISP Head-End Racks: Interconnects base station hardware and core cloud routers inside server enclosures.
MikroTik S-85DLC05D User Guide & Support Manuals Link
For technical specifications, compatibility guidelines, and optical transceiver documentation, access official manufacturer resources:
Online Purchase & Countrywide Delivery:
MikroTik S-85DLC05D is in stock and available at Potent.it Store with fast Countrywide Delivery across Kenya, servicing Nairobi, Mombasa, Kisumu, Nakuru, Eldoret, and all major commercial centers.
What is in the Box
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MikroTik S-85DLC05D 1.25G Multi-Mode SFP Transceiver Module
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Protective Dust Caps (Fitted on optical bores and contact pins)
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Quick Installation Guide
Frequently Asked Questions (FAQs)
Q1: Does the MikroTik S-85DLC05D module require multi-mode or single-mode fiber cable?
A: The S-85DLC05D is designed specifically for Multi-Mode Fiber (MMF) cables utilizing dual LC connectors.
Q2: What is the maximum transmission distance of this SFP module?
A: It supports reliable optical data transmission over multi-mode fiber links up to 500 meters (0.5 km).
Q3: Is this SFP transceiver hot-pluggable?
A: Yes, it is fully hot-pluggable, allowing you to insert or remove the module from an active SFP port without restarting the device.
Q4: Is Countrywide Delivery available when ordering from Potent.it Store?
A: Yes, Potent.it Store provides fast door-to-door countrywide delivery across Kenya for all MikroTik SFP modules, switches, and enterprise network hardware.
MikroTik S-85DLC05D Creativity Summary
The MikroTik S-85DLC05D provides a reliable, cost-effective 1.25G multi-mode optical transceiver solution featuring a 500m transmission reach, 850nm wavelength, dual LC connectors, and real-time DDM diagnostics. Engineered for seamless hot-swappable integration into MikroTik switches, routers, and third-party hardware, it equips system integrators, network administrators, and IT managers across Kenya with stable short-range fiber connectivity, zero packet degradation, and long-term network deployment stability.





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