SFP-10G-SR vs SFP-10G-LR vs SFP-10G-LRM, What’s the Difference?

SFP-10G-SR, SFP-10G-LR, SFP-10G-LRM are commonly used in today’s data center connection. They are popular 10G SFP+ optical transceiver in terms of quantity used. They have similar specifications, thus some people sometimes is confused and difficult to find the right SFP+ transceiver for their switch. What is the difference? How to choose the right SFP+ transceiver? Here, we mainly focus on the three SFP+ transceivers, SFP-10G-LR vs SFP-10G-SR vs SFP-10G-LRM.

What are SFP-10G-SR?

Cisco SFP-10G-SR SFP+ transceiver is compliant with the 10GBASE-SR trendy. It’s miles warm-swappable input/output tool which permits a 10 Gigabit Ethernet port to hyperlink 300m in a fiber optic network. The SFP-10G-SR offers clients a huge sort of 10 Gigabit Ethernet connectivity options for statistics middle, company wiring closet, and carrier issuer delivery programs.

Due to the fact it is hot-swappable and MSA compliant, the Cisco SFP-10G-SR transceiver may be plugged immediately into any Cisco SFP+ based transceiver port, without the need to power down the switch. This functionality makes actions, add-ons, and exchanges short and painless. these modules also characteristic virtual Optical tracking (DOM) functionality which allows for tracking of the sign electricity, the temperature of the SFP, and the transceiver voltage.

The SFP-10G-SR 10GBase-SR module supports link lengths up to 300 meters on multimode fiber. The SFP-10G-SR requires at least OM3 fiber.

What is SFP-10G-LR?

SFP-10G-LR is generally standard for a Cisco 10GBASE-LR SFP+ module. SFP-10G-LR supports popular single-mode fiber with a link distance of 10 kilometers. The SFP-10G-LR is compliant with the 10GBase-LR trendy and supports up to 10 km of single mode fiber with a 1310 nm laser. LR additionally has no minimum distance, so it is also suitable for short distances on single mode fiber. This 10GBASE-LR SFP+ transceiver module transmits data at speeds of up to 10 gigabits per second, making it ideal for connectivity needs in large data centers, enterprise wiring closets, large campus and metro area networks.

What is SFP-10G-LRM?

SFP-10G-LRM is generally standard for a Cisco 10GBASE-LRM SFP+ module. The SFP-10G-LRM SFP+ module supports link lengths up to 220m on standard Fiber Distributed Data Interface (FDDI)-grade multimode fibers (MMF). To ensure compliance with specifications through FDDI, OM1, and OM2 fiber, the transmitter should be coupled through a mode conditioning patch cable. For applications that over OM3 fiber or OM4 fiber, no mode conditioning patch cable is required.

SFP-10G-SR vs SFP-10G-LR vs SFP-10G-LRM, What is the Similarity and difference?

Transceiver TypeSFP+ TransceiverSFP+ TransceiverSFP+ Transceiver
Wavelength850 nm1310 nm1310 nm
Reach300 m10 km220 m
Fiber TypeMultimode Fiber (MMF)Singlemode Fiber (SMF)Multimode Fiber (MMF)
Connector TypeLC DuplexLC DuplexLC Duplex
Data Rate10 Gbps10 Gbps10 Gbps
Cabling TypeEthernet 10GBASE-SREthernet 10GBASE-LREthernet 10GBASE-LRM
DOM SupportYesYesYes
Operating Temperature0°C to 70°C (Commercial Grade)0°C to 70°C (Commercial Grade)0°C to 70°C (Commercial Grade)
Storage Temperature-40°C to 85°C-40°C to 85°C-40°C to 85°C
Power Consumption0.6 W0.6 W0.6 W
Weight0.025 kg0.025 kg0.025 kg
Other featuresNon-S-ClassNon-S-ClassNon-S-Class


SFP-10G-SR is particularly used for the short distance 10G application over multimode fiber, while SFP-10G-LR is suitable for long reach 10G Ethernet link over single mode fiber, SFP-10G-LRM is designed for long reach transmission over multimode fiber. After the evaluation, have you known the similarity and difference between SFP-10G-SR vs SFP-10G-LR vs SFP-10G-LRM,  Do you know how to choose the right SFP+ module for your network? Without a doubt, it definitely relies upon on your real needs. As a reliable SFP+ transceiver supplier dealer, OPTCORE is your perfect choice for Cisco compatible SFP-10G-SR, SFP-10G-LR, and SFP-10G-LRM SFP+ modules. For detailed information, please visit www.optcore.net