I can only answer the question with reservations because I only see one of the two products in the shop. If the name has no suffix, then the only difference is probably the price. Such differences can presumably be explained by different delivery routes. This can sometimes be recognised by a country abbreviation (e.g. EU / CH).
Hello,
I strongly assume that the switch is not defective. Think more about cables or disabled Gb on the mainboard. A simple test method would be to take the router that has a 1Gb connection and can also test all ports on the switch individually with one and the same cable. This means plugging the cable from the router into each port individually without any other devices. Make sure that the green LED always starts to light up immediately. The maximum waiting time for carrying out the action should be less than 2 seconds on each port. If you expect it to take longer on a single port, it may well be that it is down.
No, your switch should not "cap" at ~90 Mbps. This is almost always a cable or negotiation problem.
- Troubleshooting tips:
Test the speed without the switch directly on the router/modem → will you get 200/200?
Test a different LAN cable (Cat5e or Cat6, four pairs throughout).
Check the connection speed of your network card in Windows/Linux/Mac ("100 Mbit/s" or "1.0 Gbit/s").
Swap the ports on the switch.
If all else fails → switch may be faulty.