Razer has got quite the lineup of keyboards now, ranging from Arctosa, Lycosa, BlackWidow and even the older Tarantula (which was my first Razer keyboard). It seems they're on a charge for keyboard worldwide domination and the BlackWidow Ultimate Stealth Edition is no change. The current BlackWidow range is quite noisy, with a very, very loud click/clack sound from its mechanical keys. However, Razer has changed this with the Stealth keyboard. It's not completely silent, but it's a huge step in the right direction for Razer. The Razer BlackWidow Ultimate Stealth Edition comes in two flavours; Ultimate Stealth Edition and just Stealth Edition. The one Razer sent me was the Ultimate Stealth Edition, and ultimate, it is! The Ultimate Stealth Edition packs a bunch of great tech such as full mechanical keys with 45g actuation force, extreme anti-ghosting, individually backlit keys with five levels of lightning and 1000Hz Ultrapolling with 1ms response time.