The device shown in the photo is a huawei s5700-28x-pwr-li-ac, a managed layer 2 gigabit ethernet switch equipped with poe+ (power over ethernet) functionality. [1, 2]
hardware specifications
fixed ports: 24 x base-t poe+ ports and 4 x 10g sfp+ uplink ports.
switching capacity: 256 gbps.
forwarding performance: 96 mpps.
mac address table size: 16k entries.
poe budget: up to 370w autonomously (supports up to 800w when connected to an external rps1800 power supply).
power rating: ac 100v–240v, 50/60 hz, 7a max (as listed on the silver label).
dimensions (w x d x h): 442 mm x 310 mm x 43.6 mm (standard 1u rack-mountable size).
weight: approximately 4.7 kg.