perixx PERIBOARD-526 US, Wired Mini USB Keyboard with Trackball - X Type Scissor Keys - 11.18x7.17x1.1 Inches - Build-in 2 USB Hubs - US English

メンブレンキーボードは、日本のブランドのものに比べると少しだけ固め。だが、緊急用のキーボードとして、とりあえずキーボードとトラックボールが一体になっているのは非常に便利。類似品もいくつかあるが、トラックボールの操作感はこれがベター。ついでに、USBハブ機能も内蔵していて、左側面にUSB2.0のソケットが２個ついている。これも緊急用のキーボードとしては非常に助かる。類似品にはない機能だ（昔、USBの出始めのころにはよくあった機能だけど。そのあたり、やっぱりドイツ製なんだな。保守的といえるぐらい、基本に忠実というか。）すべてにおいてベストではないけれど、緊急用のワイヤードキーボードとして１台持っておくのは吉。

As can be seen in the photo of my messy keyboard are, I have quite a bit going on.Firstly, there is the keyboard itself.Then I have a number pad, to its right.And below the keyboard, I have a DIY wooden palm rest.For this arrangement, you can see my ideal keyboard...A full width arrangement with a trackpad, and palm rest.By way of explanation, I've used a laptop 'forever' however, the first problem was that its trackpad wore out. It became very shinny, and unreliable. Then, of course, the CPU and Memory were consumed by relentless software patches and upgrades. So, eventually, I swapped out the laptop for a mini-pc, and hence, the need for a (monitor), keyboard and trackpad.However, focusing on the keyboard itself, there is nothing remarkable about it. It works well enough. The keystrokes are nothing to write home about. The keys themselves are a bit on the small side, and there is minimal edge around it.Also, there are a few standard keys missing (like, accessible, Home, End, Pg Up/Down, Big Plus/Minus...), hence the numeric keypad on the side.Overall, the keyboard is probably designed for compactness (which is not what I was looking for, but had to go with).For me, the best feature is that its trackpad is below the keys (not to the side, or heaven forbid, above the keys).For anyone who consistently uses a trackpad, below the keys, is the only position for it. (I don't use a mouse because of muscular tension/strain/nerve issues - very painful - and neither should you, as you may yet discover).So overall, apart for the layout design (trackpad below the keys), a pretty 'oh, hum' keyboard, but which suits my needs.If only someone made a full size keyboard, with a trackpad below the keys, and a palm-rest.

The keys work great, it has a nice touchpad, long cord, lightweight and is basically like a laptop keyboard replacement. So it's super useful for different devices. I will critique that it's a bit loud with the clicks and the DPI is lowish, so if you hook up to a raspberry pi or steam deck where you can't really change the DPI, the mouse may feel a bit slow. But works great and has 2 USB-A buses on the side for other accessories.

For my purposes it is good. Does not need much free space. Perhaps a bit overpriced but is convenient enough to use after few hours usage.

早速、使ってみましたが、操作性に関しては、全く問題ないようです。仕方ない部分も踏まえ、強いて言えば以下２点が難点かなと。。。それ以外の他レビューの指摘の点は、問題ないよう思えます。■指摘事項１．タッチパッド面のザラザラな質感２．「_（アンダーバー）」キーの入力手間■上記項補足１：違和感、滑り難さを感じる２：JIS⇒US配列の都度の切り替えが面倒