Happy Hacking Keyboard Professional Review
Price: HHKB Pro, $269 US; Happy Hacking Keyboard Lite 2, $69 US
Excellent keyboard feel and large keys provide smooth typing.
DIP switches provide multiple configuration options.
Lack of dedicated keys means common operations need Fn-<key> combinations.
The Happy Hacking Keyboard Professional (HHKB Pro) is a compact USB keyboard with an excellent feel, some intriguing features and a hefty price tag. It's made by PFU, part of the Fujitsu Corporation.
The most important thing about any keyboard is this: how well does it work for typing? Although the HHKB Pro has fewer keys than a normal keyboard has, the keys it does have are full size and are mostly where your fingers expect to find them. The keys have an excellent feel too, clicking gently when you type but not clacking loudly. I find that I can touch-type at full speed with this keyboard. In fact, I wish my full-size keyboard had keys this nice.
Earlier keyboards in the Happy Hacking keyboard line have membrane keys with rubber caps. The HHKB Pro, however, has a circular cone spring system. According to the Happy Hacking Web site, this system provides softer keystrokes and a longer keyboard life.
As with many laptop keyboards, the HHKB Pro has a Fn key (for Function) that can combine with other keys to make a keystroke that is not otherwise available. The HHKB Pro, with only 60 keys, doesn't have dedicated function keys; but you can get an F1 keystroke with Fn-1, F12 with Fn-= and so on. This keyboard doesn't even have dedicated arrow keys; up, down, left and right are, respectively, Fn-[, Fn-/, Fn-; and Fn-'.
The HHKB Pro has the Esc and Ctrl keys in the traditional places. The most common keyboard layout today is the 104-key layout, based on the 101-key layout that IBM introduced in 1986. 104-key keyboards have a Caps Lock key to the left of the ASDF home row of keys and have two Ctrl keys, on opposite sides of the keyboard. The HHKB Pro has a single Ctrl key instead of a Caps Lock key; Fn-Tab serves as the Caps Lock key. A 104-key layout keyboard has the Esc key widely separated from the rest of the keyboard, at the extreme upper left. The HHKB Pro places the Esc key immediately above the Tab key and to the left of the 1 key.
The HHKB Pro also has a set of DIP switches that can be used to customize the way the keyboard works. These are located behind a small cover on the back side of the keyboard.
The SW1 and SW2 DIP switches select among three modes: default or HHK mode, HHK Lite mode and Macintosh mode. The only difference between the default mode and HHK Lite mode is some additional key combinations become available in HHK Lite mode. For example, you cannot use the Fn-Tab combination for Caps Lock in default mode; HHK Lite mode enables it. I can see no reason why anyone would prefer the default mode to the HHK Lite mode, and I recommend you use HHK Lite mode if you use an HHKB Pro keyboard.
Immediately above the Return key is a key labeled Delete. The SW3 DIP switch, when on, changes this to make it work as a Backspace key. Whether or not SW3 is on, Fn-Delete always works as a Backspace key, and Fn-` always works as a Delete key.
Two Alt keys are present, to the left and right of the spacebar. There also are two keys labeled with diamonds; these can be used as the logo keys from a 104-key keyboard. The SW5 DIP switches can be used to swap the functions of Alt and diamond keys. If you frequently use Alt keys—for example, if you use Emacs and Alt is your meta key—you probably will prefer this. The diamond keys are bigger and easier to press.
The SW4 DIP switch controls whether the left diamond key works as a logo key or as a second Fn key. If SW5 is enabled, making the left Alt key work as a logo key, the left Alt key becomes be the second Fn key.
The last DIP switch, SW6, controls whether the keyboard goes to sleep when the computer does. Fn-Esc makes a keystroke called Power that can be used to control a PC's sleep mode. I didn't test this feature, though.
The HHKB Pro also has a few multimedia key combinations: volume down, volume up, mute and eject are, respectively, Fn-A, Fn-S, Fn-D and Fn-F. However, these are supported only when the HHKB Pro is in Macintosh mode. In the other two modes, holding down the Fn key does not change the keystrokes these keys make. If you want the multimedia keys to work, you could try setting the keyboard to Macintosh mode, and in your desktop environment's keyboard preferences set your keyboard type to Macintosh. I tried this and it worked for me. The HHKB Pro even generated the same multimedia keystrokes as my other keyboard, so both keyboards could be used to adjust the volume of my speakers.
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