Quick Summary
The ProtoArc K90-A is a compact wireless Bluetooth keyboard for Mac with UK layout, backlit keys and multi-device connectivity. It is intended for use with MacBook Pro, MacBook Air, iPad and iPhone, and the keyboard supports connection to up to 3 devices through 3 Bluetooth channels.
The built-in rechargeable battery and low-profile scissor mechanism keys are part of the stated design, while the backlighting offers 3 soft white LED brightness levels. Compatibility is limited, so it is important to check the listed device and operating system requirements before choosing an offer.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | ProtoArc. Helps identify the exact product family. |
| Model | K90-A. Useful for checking the exact version. |
| Product type | Wireless Bluetooth keyboard for Mac. |
| Layout | UK layout. Check this matches the keyboard format you want. |
| Compatibility | Compatible with MacBook Pro, MacBook Air, iPad and iPhone. |
| Unsupported systems | Not compatible with Linux, Windows, or Windows installed on Mac hardware. |
| Operating system limit | Devices manufactured before 2013 or running macOS versions below 10.12 are not supported. |
| Connectivity | 3 Bluetooth channels for connection to up to 3 devices. |
| Backlighting | Three soft white LED brightness levels. |
| Battery | Built-in 1200mAh rechargeable battery. |
| Typing mechanism | Low-profile scissor mechanism keys. |
Key Features Explained
- Multi-device switching: The keyboard can connect to up to 3 devices, so it is aimed at users who want to move between more than one Apple device without changing keyboards.
- Backlit keys: The 3 brightness levels give you a choice of lighting settings, which is useful if you want to adjust visibility to different surroundings.
- Compact layout: The smaller format is designed to save space, so it is worth checking that you are comfortable with a compact keyboard before buying.
- Rechargeable power: The built-in battery removes the need for disposable batteries, but it still needs recharging as part of normal use.
What to Compare Before Buying
- Compatibility: This keyboard is stated for MacBook Pro, MacBook Air, iPad and iPhone. Check your exact device and macOS version before buying.
- Layout: It uses a UK layout, so compare this with the key arrangement you prefer.
- Device switching: If you use several devices, the 3 Bluetooth channels are a useful feature to compare against your setup.
- Backlighting: If key visibility matters, compare the 3 brightness levels with the lighting conditions where you plan to use it.
- Power: The built-in rechargeable battery is different from replaceable-battery keyboards, so check whether that suits your routine.
Who This Product May Suit
This keyboard may suit buyers looking for a compact Mac keyboard with Bluetooth connectivity, UK layout and backlighting. It is relevant for people using compatible Apple devices who want to connect to more than one device and prefer a low-profile typing feel.
When to Consider a Different Option
Consider a different option if you need Windows or Linux compatibility, if your Mac uses Windows installed on Mac hardware, or if you need support for devices manufactured before 2013 or running macOS below 10.12. A different layout should also be considered if you do not want UK key positioning.
Compatibility, Size and Fit
Compatibility is the main check for this keyboard. It is stated as compatible with MacBook Pro, MacBook Air, iPad and iPhone, and it is not compatible with Linux, Windows, or Windows installed on Mac hardware. It also does not support devices manufactured before 2013 or macOS versions below 10.12. If you are choosing it for a specific Apple device, check both the device model and software version before selecting an offer.
What Else You May Need
The keyboard has a built-in rechargeable battery, so you will need a way to recharge it as part of normal ownership. No USB dongle is required for connection, as pairing is via Bluetooth.
How It Works
The keyboard connects wirelessly through Bluetooth and uses 3 channels to link with up to 3 devices. You can switch between them using the mode switch button. Backlighting is adjusted through 3 soft white LED brightness levels.
Setup and Correct Use
Pair the keyboard with a compatible device via Bluetooth, then use the mode switch button to move between paired devices. If the backlighting is in use, it needs manual reactivation after sleep mode. The keyboard enters sleep mode after 60 minutes of inactivity to help conserve energy.
Care, Cleaning and Storage
The keyboard includes a built-in rechargeable battery and sleep mode behaviour, so it should be recharged and stored with that in mind. No further care instructions are given in the supplied information.
Important Limitations
This keyboard is not compatible with Linux, Windows, or Windows installed on Mac hardware. It also does not support devices manufactured before 2013 or macOS versions below 10.12. The compact format may also be a factor if you prefer a larger keyboard.
Common Buyer Questions
Can it connect to more than one device?
Yes. It supports up to 3 devices through 3 Bluetooth channels.
Does it need a USB dongle?
No. Connection is via Bluetooth.
Is it backlit?
Yes. It has 3 soft white LED brightness levels.
Does it work with Windows?
No. It is stated as not compatible with Windows, Linux, or Windows installed on Mac hardware.
Before You Decide
Check the exact device model, macOS version and layout before choosing this keyboard. Confirm that you need a UK layout, Bluetooth connection and support for up to 3 devices, and make sure the listed compatibility limits match your setup.
