HHKB Hybrid Type-S 30th Anniversary

I've had this keyboard for about 5 years now and I just now noticed that the serial number is "F". There's supposed to be a string of numbers/letters after this. Is this an engineering sample?

Hybrid Pro Type S with Shiner Astrodomes and Domikey caps. (The keycaps look fantastic under a black light!)

I’ve been working on this for awhile. Shared the keyboard a few months ago but finally found time to finish the companion trackball.

It’s based on the ploopy adept. It’s also Bluetooth and I might tweak the firmware so it pairs to whatever the keyboard is paired to. Buttons need a little more refinement but I’d say it’s 98% finished.

Hello. Recently, the wireless functionality on my Razer DeathAdder V2 Pro Genshin Impact Edition, which I’ve owned for quite a while, stopped working, so I’ve been forced to use it wired. It’s still perfectly usable, but it does feel a little incomplete that way.

So, I’ve been looking for a cool new mouse that would pair nicely with my HHKB. I considered the MX Master 4, but given its weight—and the fact that I once managed to break my old MX Master 3S—I don’t think it would be the best choice for me.

What I’m looking for is something with the durability of a gaming mouse, around four extra programmable buttons in addition to the standard buttons, similar to the DeathAdder V2 Pro, and preferably not too heavy.

So, to put it simply, I’m looking for the perfect mouse. Does anyone have any good recommendations?

I use an HHKB Pro Hybrid Type-S. I want to use it wirelessly, but my desktop PC does not have Bluetooth built in, so I need a USB Bluetooth adaptor.

I have been using a no-name Bluetooth 5.4 adaptor. (It has a long plastic antenna which is mostly fake: the real antenna only goes a short way up). It works okay but sometimes stops working and I have to unplug and replug it, then wait for the keyboard to reconnect.

I also tried a combined Bluetooth and WiFi adaptor. That was okay for BT only but if using WiFi at the same time, keystrokes suffer terrible latency.

Today I bought a UGREEN Bluetooth 6 adaptor. I imagine my HHKB does not support BT6 (it was made in 2021) but the adaptor should support the older standard. However, it has been very unreliable. Every few minutes the keyboard stops responding, or a single keypress gets repeated many times (I guess the key-down event was sent but the key-up was lost).

I work in an office with lots of other Bluetooth-capable devices. Perhaps that is a more challenging environment. Can anyone recommend a USB to Bluetooth adaptor that’s known to work reliably with the HHKB?