Razor Opus Wireless different models [late 2020 version]

Hey, I am planning to buy a Razor Opus Wireless and I wanted to ask what are the differences between the versions. An electric retail company in my region offers two products as Razor Opus, however, on their website I can't find any difference among the products except the price and the name. One of them is called 'Razer Opus Wireless' while the other is 'Razer Opus Wireless late 2020'. The latter cost approx. €12 more. They are both the same colour, however, in their description I couldn't find any significant difference. Furthermore, on Razer's support page there's different guidance for the serial numbers that starts with INxxx and for those with TIxxx. Could anyone please explain what are the differences between the models or are there?