Cisco SG350-28 Series:

Brand: Cisco
Product name: SG350-28
Secure desktop connectivity: Cisco 350 Series Switches can simply and securely connect employees working in small offices with each other and with all of the servers, printers, and other devices they use.
Unified communications: As a managed network solution, the Cisco 350 Series provides the performance and advanced traffic-handling intelligence you need to deliver all communications and data over a single network.
Highly secure guest connectivity: Cisco 350 Series Switches let you extend highly secure network connectivity to guests in a variety of settings, such as a hotel, an office waiting room, or any other area open to nonemployee users.
Head-Of-Line (HOL) blocking: HOL blocking prevention.
Loopback Detection: Loopback detection provides protection against loops by transmitting loop protocol packets out of ports on which loop protection has been enabled. It operates independently of STP.

Cisco SG350-28 Data-sheet