S21 is presented in a lively looking box. The case is illustrated on both the front and the back in a rather illusive way whilst the sides detail the technical specifications. Within the box, the case is covered in a clear plastic sheet and held in place via dual polystyrene pillars.
An attractive and eye-catching box
The Urban Series is focussed on delivering toned down aesthetics, bringing a touch of minimalism to the table rather than what we are usually accustomed with from Thermaltake. S21 is a mid-tower with the prominent side panel having a small Perspex window and a perforated mesh section giving mounting placement for a 120/140mm cooling fan. On the reverse, the side panel is convex to give slightly more space for cable management.
A sleek visual appearance
A convex side panel on the alternate side