Gigabit Switch Netgear GS504T

Good day.
Since I started talking about modems , I decided to share my old piece of iron.

One day my old comrade called me and said that he had a kind of computer-networking thing lying around ... he said: "Come see what it is, otherwise it’s already in our office for the 5th year, we don’t know why it is necessary, only dust collects."



')
This is a 4-port gigabit switch (switch?), Netgear GS504T, not managed.

The original box, with everything included in the kit: instructions, manufacturer's warranty, fasteners for a 19 "rack, power cable. Judging by the instructions and the Internet, 2000 release.

About the features and parameters of the instructions:

Features
The Model GS504T switch has the following key features:
• Four full-duplex RJ-45 connectors
• packet packet forwarding
information table
The table contains up to 8,000 media access control addresses (that is,
8,000 devices).
• Full-duplex mode to double through-point-to-point connections by letting
transmit and receive concurrently when the other end is also sup-
ports full-duplex mode
• Wire-speed filtering and forwarding
• Store-and-forward intelligent processing to minimize erroneous packets on the
network
• Easy plug and play installation, which saves time
and minimizes the potential for configuration errors

Network Protocol and Standards Compatibility
IEEE 802.3ab 1000BASE-T
IEEE 802.3u 100BASE-TX
IEEE 802.3x flow control
Data rate
1000 Mbps with PAM5 encoding
Interface
1000BASE-T Gigabit Ethernet RJ-45 connector
Power consumption
65 W
Input Voltage (Power Adapter)
100–240 V AC
Physical Specifications
Dimensions: 13.0 x 1.7 x 8.0 in; 33.0 x 4.3 x 20.7 cm
Weight: 5.3 lb; 2.3 kg

All ports are operational, honestly keep 1Gbit connection.

* Red sim card for device scales




But there is one thing ... Let's look inside.


The abundance of fans that cool (control?) The microcircuits of each port, and two more cooling the whole case. All this together creates quite a lot of noise.

I do not really understand the switches / switches devices, but the logic suggests such a picture. Immediately after the network connectors are transformers for galvanic isolation with the network (apparently so that there is no potential difference between the devices); chips labeled "EtronTech" - RAM, memory memory, 3 for each port; in the center of "Galileo" - roughly speaking, percent. What is under the radiators and fans?



This is a photo in the resolution of 3072x2304, 2.67Mb

In conclusion, a short video clip of the device, with sound. I understand that it will not be able to convey the whole atmosphere, but still. The first 20 seconds - on the background, noise is created only by the desktop and laptop, you can hear the optics of the optics in the camera shouting ...