Difference between SFP-10G-SR and SFP-10G-SR-S

SFP-10G-SR module

The Cisco 10GBASE-SR Module supports a link length of 26m on standard Fiber Distributed Data Interface (FDDI)-grade Multimode Fiber (MMF). Using 2000MHz*km MMF (OM3), up to 300m link lengths are possible. Using 4700MHz*km MMF (OM4), up to 400m link lengths are possible.

SFP-10G-SR-S module (S-Class)

The Cisco 10GBASE-SR module supports a link length of 26 meters on standard Fiber Distributed Data Interface (FDDI)-grade Multimode Fiber (MMF). Using 2000 MHz*km MMF (OM3), up to 300-meter link lengths are possible. Using 4700 MHz*km MMF (OM4), up to 400 meter link lengths are possible. SFP-10G-SR-S does not support FCoE.

SFP-10G-SR-S S-class optics are applications for enterprise and data center, the SFP-10G-SR-S is lower than SFP-10G-SR price. Also not support TAA, the SFP-10G-SR are all compliant to TAA. SFP-10G-SR-S optics only have COM 0~70℃, only support the Ethernet, not support OTN (Optical Transport Network) and WAN-PHY (Wide Area Network Physics).

Dimensions (H x W x D): 8.5 x 13.4 x 56.5mm.

Cisco SFP+ connectors typically weigh 75 grams or less.