All electronics ship with US style plugs.You may need a voltage converter or a plug adapter.
Special Features
Package-Dust Cover Anti-dust Caps for QSFP+ QSFP28, Black Silicone TPE rubber, 20 Pack
Installation-Easily Insert into your LC Ports to protect your network switches and fiber optic devices, and easy to remove with tab.
Application-Dust Cover for SFP/XFP/SFP+/QSFP+/QSFP28 Fiber Optical Transceiver and Cable Dust Cap for LC Duplex Port. the most inexpensive way to protect the slot of the open ports on switches, routers, network cards and media converters away from dust and contaminants.
Description
Differences between SFP-A and SFP-B
SFP-B TYPE:14x12x17mm/0.55x0.47x0.67in (LxWxH) Facing side is more like square.
SFP-A TYPE:15x10x12mm/0.59x0.39x0.47in (LxWxH) Facing side is rectangle.
SFP-B is a little big tight than SFP-A; SFP-A is suitable and flexible, SFP-B is durable and Tight. They are both fit in the slots of networking machines.