Be Quiet is expanding its Silent Base case family to mid-towers with the Silent Base 600. This smaller sibling of the Silent Base 800 comes in windowed and non-windowed variants in black, silver-on-black, and orange-on-black color schemes. Be Quiet promises the same silent treatment of the larger case in a package that's smaller under the desk and lighter on the wallet.

In keeping with the Silent Base name, noise dampening material covers both side panels and the front door. The company says the 600's front and top vents are designed to let air in without letting sound out. The drive bays and fan mounts are all rubber-insulated, too, which should help cut down on buzzes and hums. A three-speed manual fan controller powers the pre-installed 140-mm front and 120-mm rear fans. There's room for a total of five more spinners in the Silent Base 600, too.

This mid-tower measures 19.1" high x 19.1" deep x 9.1" wide (495 x 493 x 230 mm) and weighs in at 17.2 pounds (7.8 kg). It's got room for just about any hardware an enthusiast system might hold, including graphics cards as long as 16.25" (413 mm) and CPU coolers as tall as 6.7" (170 mm). Liquid-cooling systems can be installed inside, too, as the top of the Silent Base 600 can handle radiators up to 240 mm long.

A possible downside of the Silent Base 600 is that there's not an excess of drive capacity—three 2.5" or 3.5" drives can sit in the main drive cage and three more 5.25" drives can fit in the external bays. The drive cage can be moved up or down depending on where the graphics card might sit, so it's possible Be Quiet could offer a second cage as an accessory. As it sits, the storage space might be adequate for most systems, but similarly-priced cases come with more.

Be Quiet says the Silent Base 600 will cost $110 for the non-windowed version or $120 with a window.