ProtoArc Wireless Ergonomic Keyboard, EK04 2.4GHz USB Wireless Ergo Keyboard with Separate Numeric Keypad, Split Design, Hard Wrist Rest, Rechargeable, for Windows PC/Laptop/Desktop
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AI Verdict
This 3.04-pound, 2.4GHz wireless split keyboard with a non-removable hard wrist rest is for Windows users prioritizing an ergonomic layout over quiet typing or Bluetooth connectivity.
This keyboard is a situational fit primarily for Windows users who specifically need a 2.4GHz wireless split ergonomic design with a separate numeric keypad and are okay with a hard, non-removable wrist rest. Its Windows-only compatibility and lack of Bluetooth narrow its appeal.
If you need multi-device support, Mac compatibility, or a softer wrist rest, look for keyboards with Bluetooth and more adjustable ergonomic features.
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Pros
- Curved and split keyset design helps position wrists and forearms in a more natural posture.
- Separate numeric keypad offers flexibility for workspace setup and can improve productivity.
- Plug-and-play 2.4GHz wireless connection requires no additional drivers for Windows systems.
- Scooped scissor-switch keys provide quick response with satisfying travel.
- Built-in rechargeable lithium battery offers 250 hours of standby time after a 2-hour charge.
- Two adjustable tilt legs allow lifting the keyboard's bottom for a relaxed typing posture.
Cons
- Only compatible with Windows systems, not Mac OS.
- Loud key presses, despite being scissor-switch, can be distracting.
- The hard leather wrist rest is non-removable and not cushioned.
- Lacks Bluetooth or wired connectivity, relying solely on 2.4GHz wireless.
- Backlight automatically turns off after 1 minute of inactivity and cannot be kept on continuously.
Dimension Scores
Scooped scissor-switch keys offer quick response and satisfying travel, but some users report them being loud.
The 2.4GHz wireless connection is described as stable and responsive, with no lag reported during use.
While backlighting exists, it automatically turns off after 1 minute of inactivity and cannot be kept on continuously, limiting its utility.
The main keyboard looks and feels well-built, with a compact design.
Best For
- Windows PC users seeking an ergonomic split keyboard to reduce wrist and forearm strain.
- Individuals who prefer a separate numeric keypad for flexible desk arrangements.
- Users needing a simple plug-and-play wireless setup without driver installations.
Not Recommended For
- Mac OS users, as it is not compatible.
- Anyone needing a quiet typing experience due to reported key noise.
- Users who require Bluetooth or wired connectivity options.
Watch Out For
- The scissor-switch keys are reported to be loud, which might be a dealbreaker if you need a quiet keyboard.
- The hard leather wrist rest is non-removable, so you can't swap it out for a softer or different style.
- Connectivity is limited to 2.4GHz wireless via a USB receiver; there's no Bluetooth or wired mode.
- The backlight cannot be kept on continuously and automatically turns off after 1 minute of inactivity to preserve battery.
- The dedicated function keys for Copy and Cut are on F8 and F9 respectively, which is an inconsistent order compared to the standard X, C, V.
Full Specifications
| ASIN | B0DQ8BG849 |
| Brand | ProtoArc |
| Color | Black |
| Material | Leather, Plastic |
| Item Weight | 3.04 pounds |
| Manufacturer | ProtoArc |
| Power Source | Battery Powered |
| Special Feature | Ergonomic, Hard Wrist Rest, Low-Profile Key, Separate Number Pad, Split Keyset Design |
| Compatible Devices | Windows Desktop, Windows Laptop, Windows PC |
| Package Dimensions | 14.57 x 10.28 x 2.13 inches |
| Keyboard Description | Ergonomic Split Design, Separate Numeric Keypad, Hard Wrist Rest |
| Connectivity Technology | USB |
| Recommended Uses For Product | Everyday Use |
What Buyers Say
What really stands out is that despite using scissor-switch keys, which are usually quiet, multiple users have pointed out that this keyboard is actually quite loud, which is a bit of a surprise for an ergonomic model. People seem to dig the split design for comfort and the separate number pad for desk flexibility. However, the hard, non-removable wrist rest and the fact it's Windows-only are recurring points of contention.
“Ugh, I wanted to love this thing for my wrists, and the split design is actually pretty comfy, but why are these 'scissor' keys so clicky and loud? My coworkers are gonna hate me. And seriously, no Bluetooth? It's 2025!.”
Common Praise
- The split design promotes a natural hand position, reducing strain.
- The separate numeric keypad is a smart design choice, offering workspace flexibility.
- Scissor-switch keys are lightweight and have a satisfying amount of travel.
- Plug-and-play setup with the 2.4GHz USB receiver is straightforward.
- The main keyboard feels well-built and compact.
Common Complaints
- The keys are loud, which can be disruptive.
- The wrist rest is hard, not cushioned, and cannot be removed.
- Lack of Bluetooth or wired connectivity limits its versatility.
- Only works with Windows, excluding Mac users.
- The backlight automatically turns off quickly and can't be set to stay on.
Ownership Tips
- The 2.4GHz dongle attaches magnetically to the bottom of the number pad.
- There are arrow keys on both the main keyboard and the number pad, which adds versatility but makes the numpad quite large.
- The dedicated Lock button on the number pad might have been more useful on the main keyboard.
- The specific order of Copy (F8) and Cut (F9) on the function keys can be confusing.
- The keyboard enters deep sleep mode after 30 minutes of inactivity, requiring a key press to wake it up.
Frequently Asked Questions
Is this keyboard compatible with Mac OS?
No, the ProtoArc EK04 is only compatible with Windows Desktop, Windows Laptop, and Windows PC. It does not support Mac OS.
Does the keyboard have Bluetooth connectivity?
No, the keyboard and number pad do not support Bluetooth connection. They connect via a 2.4GHz wireless USB receiver only.
How long does the battery last on a single charge?
The built-in rechargeable lithium battery offers 250 hours of standby time after 2 hours of full charge.
Is the wrist rest removable or soft?
The wrist rest is hard, made of leather, and is non-removable. It is not a soft cushioned one.
Can the backlight stay on continuously?
No, the backlight cannot be kept on continuously. It automatically turns off after 1 minute of inactivity to preserve battery life.
How do I re-pair the keyboard with the USB dongle?
Insert the USB receiver, turn on the keyboard, then press Esc and '+' simultaneously for 3 seconds. When the USB mode indicator flashes, quickly unplug and replug the USB receiver to re-pair.
Buying Guide
When looking at ergonomic keyboards, you're usually trying to keep your wrists and forearms in a more natural position to avoid strain. A 'split design' means the keys are separated into two sections, often angled, to align with your shoulders. 'Wireless' usually means fewer cables, but pay attention to the connection type – 2.4GHz needs a USB dongle, while Bluetooth connects directly to your device. A wrist rest is crucial for comfort, but whether it's hard or soft, and if it's removable, makes a big difference.
Connectivity (2.4GHz Wireless)
This means it uses a small USB dongle that plugs into your computer, similar to how many wireless mice connect. It's generally stable but ties up a USB port and won't work with devices that don't have a USB-A port or Bluetooth. If you want to connect to multiple devices or a tablet, this isn't your pick.
Type (Ergonomic Split Design, Hard Wrist Rest)
The split design is the main ergonomic feature, aiming to reduce wrist pronation. The 'hard wrist rest' means it's firm, not squishy, and since it's built-in, you can't swap it for something else if it's not comfortable for you. This is a personal preference, so know if you like a firm or soft rest.
Compatible (Windows PC/Laptop/Desktop)
This is a big one – it literally only works with Windows. If you have a Mac, an iPad, or anything else, it won't connect. This limits its use to a specific ecosystem, so make sure it matches all your devices.
Alternatives
If this keyboard doesn't fit, search for ergonomic split keyboards with Bluetooth for multi-device compatibility, Mac OS support, or those with soft, removable wrist rests for more comfort options.
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