Cooling
| Side fans diameters supported |
120 mm |
| Bottom fans diameters supported |
120 mm |
| Rear fans diameters supported |
120 mm |
| Rear fans installed |
1x 120 mm |
Design
| Suitable for |
Home/Office |
| Maximum CPU cooler height |
155 mm |
| Maximum graphics card length |
320 mm |
| Side window |
Y |
| Form factor |
Midi-Tower |
| Type |
PC |
| Number of 3.5" bays |
6 |
| Number of 5.25" bays |
3 |
| Number of expansion slots |
7 |
| Number of internal 3.5" bays |
5 |
| Number of 2.5" bays |
1 |
Ports & interfaces
| USB 3.0 (3.1 Gen 1) Type-A ports quantity |
2 |
Mid Tower, SECC, 7 expansion slots, 5.1 kg
<b>Thermaltake Urban R21 mid-tower chassis</b>
The unique individual defined by details- Urban R21, has a simple and sleek metal brushed front door in the front to mask the 3 ODD and 6 HDD drive bays, above the door front-top I/O ports including 2 of SuperSpeed USB 3.0 to grant ease and quickness in the need of data transfers, a side window opening panel to take an instant glance of the interior, heightened foot-stand and a preinstalled 120mm fan to optimize interior airflow, pre-mounting holes to support motherboards up to standard ATX and CPU cooler installation.
<b>Simple Design</b>
Using brushed metal front panel to mask the extrusive drive devices, not only unify the appearance, but also provide a simple yet elegant aesthetic.
<b>Handy I/O ports</b>
The top-front panel has implemented two of latest data transfer SuperSpeed USB 3.0 ports, a HD microphone and headset jacks, to grand direct access when needed.
<b>Optimized Ventilation</b>
One preinstalled 120mm fan to optimize system ventilation. Plus pre-mounted hole for more ventilation options
<b>Tool-free Innovation</b>
Innovative 5.25” & 3.5” tool-free drive bay design minumized the hassels of installing ODD and HDD devices.
<b>Convenient Support</b>
Pre-mounting holes to support motherboards up to standard ATX and CPU cooler installation, extra long graphic cards also supported.
