How To Simplify The Selection Of Copper RJ45 SFP Transceiver--ETU-LINK

How to Simplify the Selection of Copper RJ45 SFP Transceiver

April 03. 2026

I. Introduction to Copper SFP Modules: The "Seamless Connector" Between Electrical Signals and Optical Networks

In optical communication systems, the Copper-T SFP Transceiver is a special type of optical module. It not only possesses the core function of photoelectric conversion but also directly connects to a network cable (such as Cat5e/Cat6/Cat7) via an RJ45 electrical interface, enabling bidirectional transmission of electrical and optical signals.

This design makes the Copper SFP Module an ideal choice for short-distance network upgrades and equipment compatibility expansion—it can increase network speeds from hundreds or gigabit speeds to 2.5G or even 10Gbps without replacing existing network cables, while retaining the low latency and interference resistance advantages of optical modules.

Typical Application Scenarios :

1) Upgrade of existing network equipment (such as switches and routers) using a hybrid optoelectronic method;

2) Short-distance data center server interconnection (30m-100m);

3) 5G small base station backhaul, enterprise campus network, industrial automation control.

II. Three Core Classification Dimensions of Copper SFP Modules

1. Classified by Rate: To meet different bandwidth requirements

Rate Level	Typical Scenarios
100M	Traditional monitoring, low-speed industrial control
1000M	Enterprise office network, general video surveillance
2.5G	Wi-Fi 6 access point, 5G small cell backhaul
10 Gigabit	Data center server interconnect, high-performance computing

2. Classified by Operating Temperature: Adaptable to extreme environments

Temperature Rating	Applicable Scenarios
Commercial	0℃~70℃ (Data center; Office)
Industrial Grade	-40℃~85℃ (Outdoor Base Stations; Industrial Automation)

3. Classified by Chip Solution: Balancing performance and cost

Chip Brand	Features
Realtek	High cost-effectiveness, suitable for small to medium-sized networks
Marvell	Highly stable and widely used in enterprise-level equipment
Broadcom	High performance and low latency, the top choice for data centers

III. ETU-LINK: 10+ Years of Experience and Customized Solutions

Facing the challenge of a wide variety of optical modules, ETU-LINK Optical Communication provides "Scenario-Based Selection + Full Lifecycle Service" :

1. Precisely Match Needs: Recommend the optimal solution based on parameters such as speed, temperature, and distance;

2. Strict Quality Control: Employs multiple chips from Realtek, Marvell, Broadcom, etc., ensuring compatibility with mainstream brand devices;

3. Fast Delivery Capability: Ample inventory supports expedited processing of urgent orders;

4. Technical Team Support: Providing one-stop services such as installation, commissioning, and troubleshooting.

Data Rate		Part No.	Product Parameters
10/100M		ES-T3-R	10/100M SFP RJ45 Copper 100M
10/100M		ES-T3-RI	10/100M SFP RJ45 Copper 100M Realtek Industrial
10/100/1000M		ES-T2-R	1000M SFP Copper RJ45 100M Marvell
		ES-T4-RI	1000M SFP Copper RJ45 100M Realtek Industrial
		ES-T2-R-1	1000M SFP Copper RJ45 100M Realtek
1000M		ES-T1-R-2	1000M SFP Copper RJ45 100M Realtek Customed
		ES-T4-R	10/100/1000M SFP Copper RJ45 100M Realtek
		ES-T1-R	10/100/1000M SFP Copper RJ45 100M Realtek Industrial
		ES-T1-R-1	10/100/1000M SFP Copper RJ45 100M Marvell
2.5G		ES-T0-R	2.5G SFP Copper RJ45 100M
2.5G		ES-T0-R-I	2.5G SFP Copper RJ45 100M Industrial
10G	30M Compatible HP	ES-T5-R-1	10G SFP Copper RJ45 30M Compatible HP Marvell
	30M Compatible HP	ES-T5-R	10G SFP+ Copper RJ45 30M Compatible HP Marvell
	30M	ES-T5-R-1	10G SFP Copper RJ45 30M Marvell
		ES-T5-R-2	10G SFP+ Copper RJ45 30M Marvell Multi-Rate Adaptive A
		ES-T5-R	10G SFP+ Copper RJ45 30M Marvell B
		ES-T5-R-3	10G SFP+ Copper RJ45 30M Realtek Multi-Rate L Version
		ES-T5-RI	10G SFP+ Copper RJ45 30M Industrial Broadcom Compatible HP
	80M	ES-T6-R	10G SFP+ Copper 80M Broadcom
	100M	ES-T7-R	10G SFP+ Copper 100M Broadcom

Whether you need to upgrade your legacy network, expand equipment compatibility, or build a high-performance data center, ETU-Link Technology Co., Ltd. can provide cost-effective and highly reliable Copper SFP Transceiver solutions! Let Copper RJ45 SFP Modules become the "accelerator" for your network upgrades!

Why Choose ETU-Link Optical Transceiver?
ETU-LINK Technology Co., Ltd. is a optical transceiver manufacturer specializing in the development, production, and promotion of high-performance fiber optic transceivers and high-speed cabling solutions.
1) Low to Mid-Speed: SFP, SFP+, SFP28, QSFP, QSFP+ series covering 1G to 40G
2) High-Speed: 100G QSFP28, 200G QSFP56, and 400G QSFP-DD/OSFP modules
3) Ultra-High-Speed: 800G OSFP DR8 and 800G OSFP 2×DR4, built on 8×100G PAM4 architecture
All ETU-LINK modules are rigorously tested for seamless interoperability with major switch and router brands. Products comply with international standards including IEEE 802.3, MSA (Multi-Source Agreement), CMIS 5.0+, and compliance CE, FCC, and RoHS.

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