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Zyxel SFP-SX-D 1000BASE-SX SFP Transceiver Module, Multimode 850nm LC, up to 550m, DDMI

Brand:
Zyxel
ZyXEL SFP-SX-D - SFP (mini-GBIC) transceiver module - 1000Base-SX - plug-in module - up to 550 m
Zyxel SFP-SX-D 1000BASE-SX SFP Transceiver Module, Multimode 850nm LC, up to 550m, DDMI
€60.95 inc. VAT
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91-010-204001B
€51.22
€60.95 inc. VAT
Ships from EU stock: 47 item(s)
Product Code
04:75693
EAN Code
4718937510344
Manufacturer
Zyxel
Quick Specs
Standard
1000BASE-SX
Fibre
Multimode 850nm
Distance
Up to 550m
Connector
LC duplex
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Zyxel SFP-SX-D 1000BASE-SX SFP Transceiver

1000BASE-SXMultimode 850nmLC, up to 550mDDMI

The Zyxel SFP-SX-D (91-010-204001B) is a 1000BASE-SX SFP (mini-GBIC) transceiver module that adds a Gigabit fibre-optic link to a switch's SFP slot over multimode fibre. Using an 850nm laser and an LC duplex connector, it reaches up to 550m on OM2 (50µm) fibre and includes DDMI for real-time monitoring of temperature, voltage and optical power. It is the ideal way to connect switches or extend a Gigabit link beyond the 100m limit of copper. Typically in stock with fast delivery across Cyprus.

Compatibility: Plugs into a Gigabit SFP slot on a switch or media converter — designed for Zyxel SFP-capable switches and, as an SFP-MSA / IEEE 802.3z compliant module, compatible with many other vendors' SFP slots. It requires multimode fibre (OM1/OM2) with LC duplex connectors and a matching 1000BASE-SX device at the other end. It is a 1G SFP module (not 10G SFP+), and multimode-only — do not pair it with single-mode fibre or long-reach (LX/LH) modules.

Key Features

 
Gigabit Fibre over Multimode
1000BASE-SX at 850nm delivers a full Gigabit Ethernet link over affordable multimode fibre, ideal inside buildings and across campuses.
 
Reach up to 550m
Spans up to 550m on OM2 (50µm) or around 220m on OM1 (62.5µm) fibre — far beyond the 100m limit of copper Ethernet.
 
DDMI Monitoring
Digital Diagnostic Monitoring (SFF-8472) reports live temperature, voltage and optical power so you can track link health and troubleshoot faster.

Technical Specifications

Identification
Part Number SFP-SX-D
EAN / GTIN 4718937510344
MPN 91-010-204001B
Brand Zyxel
Type SFP (mini-GBIC) transceiver
Optical & Performance
Standard 1000BASE-SX, IEEE 802.3z
Fibre Type Multimode (MMF)
Wavelength 850 nm
Connector LC duplex
Max Distance Up to 550m (OM2 50µm) / ~220m (OM1 62.5µm)
Diagnostics DDMI (SFF-8472)
Design & Environment
Form Factor SFP, MSA compliant
Data Rate 1.25 Gbps (Gigabit Ethernet)
Operating Temperature 0 to 70 °C

Frequently Asked Questions

Which switches is this compatible with?
It is built for Zyxel switches with Gigabit SFP slots and, being SFP-MSA and IEEE 802.3z compliant, works with many other brands' SFP slots too. Some switches only accept modules on an approved list, so check your switch's transceiver compatibility before ordering.
What fibre and distance does it support?
It uses multimode fibre with LC duplex connectors: up to 550m on OM2 (50µm) or about 220m on OM1 (62.5µm). For longer single-mode runs you need a 1000BASE-LX/LH module instead.
Is this a 10G module?
No. It is a 1-Gigabit SFP module (1000BASE-SX). It fits SFP slots for Gigabit fibre; it is not a 10G SFP+ transceiver and will not provide 10G speeds.
Singular Expert Insight
An 1000BASE-SX SFP like the SFP-SX-D is the standard, cost-effective way to run Gigabit fibre between switches over multimode cabling — perfect for building-to-building or floor-to-floor links that exceed copper's 100m reach. Being Zyxel-branded it is the safe choice for Zyxel switches; fit one at each end of the fibre and connect them to your network switches. For longer distances over single-mode fibre, choose a 1000BASE-LX module instead.

Buyer’s Guide

Buy it if
You need to add a Gigabit fibre uplink to an SFP-capable switch over multimode cabling, up to 550m, ideally on Zyxel gear.
Skip it if
You need single-mode long-reach fibre, a 10G SFP+ link, or a direct copper connection — this multimode 1G module will not fit those.
Also consider
A 1000BASE-LX SFP for single-mode long runs, a 10G SFP+ module for 10G links, or a DAC cable for short copper runs.

Features - Zyxel - 91-010-204001B

More Details
Product Code
04:75693
EAN Code
4718937510344
Manufacturer
Zyxel
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