The Thermaltake Divider 550 TG Ultra is quite the interesting case. From a pricing perspective, it marks a $100 premium over the 500 TG ARGB, which is essentially the same chassis without the display. From that perspective, it is a justified spread to get that beautifully embedded, unique 3.9" screen while retaining all chassis functionality. On the flip side, Thermaltake stopped providing alternative side panels and the front dust filter with the Divider 550 Ultra, so it is not quite as pure a "Divider chassis" as other offerings in the product line. But even so, the 550 TG Ultra looks beautiful with its nicely shaped, full glass panel.

Within the enclosure, you naturally get the same build experience as with the 500 TG ARGB, which provides a solid frame, removable glass panels, fan and radiator mounting frames, and that internal layout. This means a clean interior is achievable, but requires a bit of extra work and creativity, especially when including the additional leads from the display and something as special as the TOUGHLIQUID Ultra 260, for example.

The 3.9" LCD screen provides a large variety of useful data and plenty of customizability alongside the tangible fun factor, so if you have your heart set on the Divider 500 TG series, spending that extra money may just be worth the investment, especially if holding on to it for a while. The achilles heel is the software, which feels a bit rough around the edges, with UI and UX decisions which are hard to comprehend as an user. Once you get used to its quirks, it does the job of driving the embedded screen well enough, so we can recommend the 550 TG Ultra. However, improving the software and adding TT RGB Plus 2.0 fans instead of the basic proprietary 6-pin variants for a small price premium would really tie the case together nicely.