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Apple이 제작한 4세대 무선 키보드입니다. 2015년 10월에 출시되었습니다. 모델 A1644.

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What Bluetooth versions are the 2021 Magic Keyboard and Magic Trackpad

Apple updated and released new Magic accessories for the M1 iMacs, and those have recently become available to purchase as sandalone products.

But what Bluetooth version are these devices?

I know the older Trackpad 2 is Bluetooth 3.0., so I’m assuming the new ones are at least Bluetooth 4.0.

I can’t find any source explaining this and it doesn’t seem ifixit went over this in their M1 iMac teardown. Maybe they assumed we know it’s all Bluetooth 5.0?

It would make sense for it to be 5.0, since the M1 iMac is 5.0.

Does anyone know or know how to figure this out? Does the iMac show the Bluetooth version of connected devices somewhere in its settings?

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I don’t think Apple altered the keyboard, mouse or trackpad units. There really is no real reason to do so. These are slow input devices so offering the super fast newest standard doesn’t make economical sense for them (the older parts are cheaper) and for you, you won’t see any difference as hard as you try!

Reference: Breakdown of the Bluetooth specs

Key points:

Bluetooth 2.0 - The introduction of an Enhanced Data Rate (EDR) for faster data transfer. The bit rate of EDR is 3 Mbit/s, although the maximum data transfer rate (allowing for inter-packet time and acknowledgements) is 2.1 Mbit/s.

Bluetooth 5.0 - Provides, for BLE, options that can double the speed (2 Mbit/s burst) at the expense of range, or provide up to four times the range at the expense of data rate (max 3.8 Mbit’s)

As you can see the data rates really haven’t changed. The speed of your typing or movement of the mouse or trackpad is still at the lower data rate ~2.0 Mbit/s.

Joy stick controllers on the other hand, which often have multiple outputs would benefit Bluetooth 5.0 as it allows multiple streams beyond the normal three a headset would use (Left, Right & Mic) of the original Bluetooth spec.

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