PERIBOARD-505H PLUS US, Wired Mini Keyboard with Trackball & 2 Hubs - USB - 14mm Optical Trackball - Build-in 2xHub - 1.80 M Cable - Piano Black - Fit with Industrial or Professional Use - US English Layout

I bought this keyboard as I wanted a wired keyboard with a built in trackball that would work with the Raspberry Pi device. The fact that the keyboard has onboard usb ports and has a small footprint are a bonus as well. Thankfully the keyboard and trackball work well with the Raspberry Pi - recommended for anyone looking for a smaller keyboard/trackball combo for this device.

Nicely made keyboard with nice action, solidly made. The trackball is a bit hyperactive so requires a fine touch. The two usb sockets at the top are very handy for USB sticks or an external mouse if need be. I'm using it at the end of a long usb extension cable so single cable is very handy.

I got this keyboard because I wanted a small integrated keyboard & pointing device for use with some servers that don't normally have a keyboard attached. This keyboard is great for that - very light to move around, no batteries (USB), an integrated trackball. The trackball is a little bit oversensitive when used in environments like a computer BIOS where you can't adjust sensitivity, but in general it works great. The keys have a very short travel but are comfortable in use. The keyboard is probably a bit too small for regular use, but it's perfect for what I wanted.

There was lots of research involved, before I stumbled across this little gem. My criteria was to purchase a mini keyboard that wouldn't dwarf my 22" smart TV when not in use, and would comfortably sit on my lap when in use; so I didn't want a mouse - no where to roll it, so the trackball was a great little addition! And I wanted the extra USBs for future computer gizmos. So this was a great find...would highly recommend.

Great product does exactly what it says on the tin. Nicely made, works well.

I bought this keyboard for my partner who has a complain that the full-size keyboard is not suitable for her as the mouse remains a bit far from her. This keyboard kind of solves her problem. The keys are tactile with good travel and well-spaced. It good when you don't have to types a lot. I recommend this keyboard for its portability and light use.

No numlock key. Keys with Fn not indicated. Sometimes USB loses touch with PC. Other than that, very good to use

Does the job

La tastiera è ben costruita e funziona ottimamente. Per un uso professionale può far piacere sapere che il trackball è posizionato nell'angolo in alto a destra e si tratta di una sfera abbastanza piccola (inferiore alle dimensioni di una pallina dei vecchi mouse), con una velocità di rotazione elevata (cioè fa poco attrito). Questo consente spostamenti velocissimi del cursore.

For working from home, I needed a keyboard that occupied as little space as possible in my desk while not making the keys smaller to achieve it. Small keys might be fine for a coffee table keyboard connected to a smart TV, but not for 8hr / day use. This is the perfect keyboard in that regard: no numeric keypad, no unnecessary spacing, the keys are regular sized so it's comfortable to type on (I took a photo to show). It's also thin enough, which is good for ergonomics. And I also like very much that the Ctrl key is in the corner (instead of placing Fn in the corner like some sadistic keyboard designers do). As other reviewers have mentioned, they trackball it includes is way too sensitive for being used. When I bought it I thought to myself I'd give it a try and maybe try to configure it via the appropriate driver. Well, no special driver for ChromeOS, and the OS doesn't let you adjust the sensitivity on a per-device basis. But for me a usable trackball would have been just an extra delight ("I can also take the mouse off the desk!"). Speaking of the mouse, the keyboard includes USB ports; it's practical to connect your mouse to it if you're going to be then connecting and disconnecting them both to your laptop repeatedly like me. I've been using it for a few months now and I'm very happy with it. Glad I bought it.

Trackball isn't very smooth. Trackball isn't accurate. Trackball is too fast. Keys are mushy. You get what you pay for.

トラックボール付きのものを探してたところ、こちらが安価で11inchタブレット用のバックにも入るサイズでしたのでこちら購入しました。初英字キーボードでキーの配置が若干違うことへの慣れ、日本語入力切り替えの設定変更など必要そうです。押し心地はなんというか90年代のパソコンに付属してたものに近いです。トラックボールは若干反応悪いです、ゆっくり転がすと動かないです。 たまにしか使わないので問題ないですが、メインで使おうという方にはトラックボールの反応の悪さがネックな感じします。

I have two of these now. It's perfect size to carry around and to keep the mouse close by. Spilled coffee (black) on one but it kept working after letting it dry out for a few hours.