ETU-LINK

Discover ETU-LINK's selection of Optical Transceivers and Interfaces featuring cutting-edge technology for enhanced network performance. Our collection includes 100G QSFP28, 25G SFP28, and 10G SFP+ optical transceivers, along with Direct Attach Copper solutions. Ideal for a wide range of applications, these products ensure high-speed, reliable connectivity. Upgrade your network with our top-quality transceivers, designed for compatibility with leading hardware brands.

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Optical transceivers

Optical transceivers play a pivotal role in data transmission, and they are categorized based on various factors. One primary classification is by transmission rates, which include 400G, 100G, 40G, 25G, 10G, 1G, and 100M optical modules.

Another significant classification is by their encapsulation types. As the transmission rate of an optical module increases, so does its structural complexity. Based on encapsulation, they are differentiated into SFP, SFP+, XFP, SFP28, QSFP+, CXP, CFP, QSFP28, and QSFP-DD modules.

A notable feature of these optical modules is that they are all hot swappable, ensuring flexibility and ease of use.

Direct Attach Copper

Direct Attach Copper (DAC) offer a reliable and cost-effective solution for high-speed data transmission in networking environments.

These copper cables, equipped with connectors, plug directly into network interfaces.

By providing a direct electrical connection between devices, DAC ensures speedy and consistent data flow.

Their simplicity, coupled with cost-effectiveness, makes them an ideal choice for data centers and high-performance computing ecosystems.

SYNOXX 100G QSFP28 DAC Cable QSFP28 3m | EDQPY-3
SYNOXX 100G QSFP28 DAC Cable EDQPY-3 QSFP28 3m
In stock
The SYNOXX EDQPY-3 is a 100G QSFP28 to QSFP28 passive direct attach copper (DAC) 
cable delivering 100Gbps over a 3-metre twinax connection using a 4×25G lane 
architecture — purpose-built for cross-rack and adjacent-rack 100G connections where 
1-metre cables fall short. Compliant with SFF-8636 and IEEE 802.3bj, featuring a 
two-wire I2C interface for monitoring and control, low crosstalk design, and power 
consumption under 1.5W per end. Hot-pluggable, RoHS compliant, and IC Certified.
US$68.00
ETU 25G SFP28 SR 850NM 100M LC
New
ETU 25G SFP28 SR 850nm 100M LC
Available!
25G SFP28 SR transceiver with 850nm VCSEL, LC connector, DDM support, and up to 100m transmission over multimode fiber.
US$40.00
SYNOXX 25G SFP28 SR Transceiver LC 100m | ESP852X-01D
SYNOXX 25G SFP28 SR Transceiver ESP852X-01D LC 100m
In stock
The SYNOXX ESP852X-01D is a 25G SFP28 SR optical transceiver delivering 25.78Gbps 
transmission over multimode fiber — up to 100m on OM4, 70m on OM3, and 20m on OM2 
— using an 850nm VCSEL laser and PIN photodiode, purpose-built for high-density 25G 
Ethernet switching, 5G CPRI fronthaul, and 100G breakout target deployments. 
Features a hot-pluggable SFP28 form factor, LC duplex connector, and Digital 
Diagnostic Monitoring (DDM) via SFF-8472, with low power consumption and compliance 
with IEEE 802.3cc and SFF-8402 standards. Hot-pluggable, RoHS compliant, and IC 
Certified.
US$40.00
ETU 25G SFP28 TO SFP28 DAC 3M
New
ETU 25G SFP28 TO SFP28 DAC 3M
Available!
High-performance 25G SFP28 to SFP28 direct attach copper cable designed for short-range connectivity up to 3 meters, offering low power consumption and excellent signal integrity.
US$39.00
ETU 100G QSFP28 TO QSFP28 DAC 1M
New
ETU 100G QSFP28 TO QSFP28 DAC 1M
Available!
High-speed 100G QSFP28 to QSFP28 DAC cable, SFF-8636 compliant, IEEE 802.3bj support, low power consumption, excellent signal integrity.
US$39.00
SYNOXX 100G QSFP28 DAC Cable QSFP28 1m | EDQPY-1
SYNOXX 100G QSFP28 DAC Cable EDQPY-1 QSFP28 1m
In stock
The SYNOXX EDQPY-1 is a 100G QSFP28 to QSFP28 passive direct attach copper (DAC) 
cable delivering 100Gbps data transfers over a 1-metre twinax connection using a 
4×25G lane architecture — the ideal same-rack interconnect for 100G spine-leaf 
switching environments. Compliant with SFF-8636 and IEEE 802.3bj, featuring a 
two-wire I2C interface for monitoring and control, low crosstalk, and power 
consumption under 1.5W per end. Hot-pluggable, RoHS compliant, and IC Certified.
US$39.00
SYNOXX 25G SFP28 DAC Cable SFP28 3m | EDSP2X-3
SYNOXX 25G SFP28 DAC Cable EDSP2X-3 SFP28 3m
In stock
The SYNOXX EDSP2X-3 is a 25G SFP28 to SFP28 passive direct attach copper (DAC) 
cable delivering 25.78Gbps over a 3-metre twinax connection — purpose-built for 
adjacent-rack 25G connections where 1-metre cables fall short, including cross-rack 
leaf-to-server links, flexible cable management through overhead trays and 
under-floor pathways, and 100G breakout target deployments with extra slack. 
Compliant with SFP28 MSA, SFF-8402, and IEEE 802.3by, featuring a hot-pluggable 
SFP28 form factor, low power consumption, and a fully passive copper signal path 
with no active components. Hot-pluggable, RoHS compliant, and IC Certified.
US$39.00
ETU 25G SFP28 TO SFP28 DAC 1M
New
ETU 25G SFP28 TO SFP28 DAC 1M
Available!
High-performance 25G SFP28 to SFP28 direct attach copper cable designed for short-range, high-speed connectivity. Supports up to 25.78Gbps with low power consumption and excellent EMI performance.
US$30.00
SYNOXX 25G SFP28 DAC Cable SFP28 1m | EDSP2X-1
SYNOXX 25G SFP28 DAC Cable EDSP2X-1 SFP28 1m
In stock
The SYNOXX EDSP2X-1 is a 25G SFP28 to SFP28 passive direct attach copper (DAC) 
cable delivering 25.78Gbps over a 1-metre twinax connection — the standard 
same-rack interconnect for 25G leaf-to-server links, high-density SFP28 switch 
stacking, and 100G breakout target deployments where short-reach passive copper 
outperforms active optics on cost and power. Compliant with SFP28 MSA, SFF-8402, 
and IEEE 802.3by, featuring a hot-pluggable SFP28 form factor, low power consumption, 
and low-latency passive copper signal path with no active components required. 
Hot-pluggable, RoHS compliant, and IC Certified.
US$30.00