25G SFP28 optical module is a module with a transmission rate of 25Gbps. The appearance of 25G optical module makes up for the defects of high speed optical module such as high price and excessive power consumption, while the speed of 10G optical module cannot meet meet the user's requirements.What are the common 25G SFP28 optical modules on the market? The following ETU-Link will give you a detailed introduction.

The 25G SFP28 optical module is mainly used for the interconnection of data center servers and switches. It is a new Ethernet standard with multiple advantages. It was proposed by IEEE 802.3 working group in July 2014, and was completely revised in June 2016.The biggest advantage of 25G Ethernet technology for data centers is that it can maximize bandwidth and port density, and it can also use 25Gb/s single-channel physical layer technology to achieve 100Gb data transmission, and it can provide the most energy-saving way to meet the growing demand of the next generation of data center network.

Advantages of 25G SFP28 Optical Module

Because the optimal input/output (I/O) performance and fiber capacity of the 25G SFP28 optical module is 2.5 times that of 10G Ethernet, and has a higher port density, it can also save operating costs by reducing the number of ToR switches and cables. Compared with 100G optical modules, also has lower loss. In addition, the 25G SFP28 optical module can use 2 fiber channels to achieve 50G transmission rate. compared with using 4 10G optical fiber channels to achieve 40G optical module, 25G SFP28 optical module is undoubtedly a better choice.

The above mainly know the reasons and advantages of 25G SFP28 optical module, so what are the common types of 25G SFP28 optical module?

The types of 25G SFP28 optical module

The SFP28-25GLR 1310nm 10KM is a single-Channel, Pluggable, Fiber-Optic SFP28 for 25 Gigabit Ethernet and Infiniband EDR Applications. It is a high performance module for short-range data communication and interconnect applications which operate at 25.78125 Gbps up to 10km. This module is designed to operate over single mode fiber systems using a nominal wavelength of 1310nm. The optical interface uses duplex LC receptacle.

Features

Hot-pluggable SFP28 form factor

Supports 25Gbps data rate

Maximum link length of 10km

1310nm DFB laser and PIN photo-detector

Internal CDR on both Transmitter and Receiver channel

Duplex LC receptacle

Single 3.3V power supply

Power dissipation < 1.5W

Digital diagnostics functions are available via the I2C interface

RoHS-6 compliant

Commercial case temperature range: 0°C to 70°C

The SFP28 SR 850nm 100m is a single-Channel, Pluggable, Fiber-Optic SFP28 for 25 Gigabit Ethernet and Infiniband EDR Applications. It is a high performance module for short-range data communication and interconnects applications which operate at 25.78125 Gbps up to 70 m using OM3 fiber or 100 m using OM4 fiber. This module is designed to operate over multimode fiber systems using a nominal wavelength of 850nm. The electrical interface uses a 20 contact edge type connector. The optical interface uses duplex LC receptacle.

Features

Hot-pluggable SFP28 form factor

Supports 25Gbps data rate

Maximum link length of 100m

850nm VCSEL laser and PIN photo-detector

Inter CDR on both Transmitter and Receiver channel

Duplex LC receptacle

Single 3.3V power supply

Power dissipation < 1W

DDM functions are available via the I2C interface

RoHS-6 compliant

Commercial case temperature range: 0°C to 70°C

As a professional optical module manufacturer, ETU-Link can provide cost-effective 25G optical modules and solutions. The 25G SFP28 optical module is favored by data center users because it provides cost-effective 25G and 100G network solutions. It is mainly used for short-distance data transmission in switches, routers, network interface cards (NIC) and storage network devices of 25G Ethernet.