Redragon EISA K686 Pro vs PENUMBRA K687 HEWireless vs Gaming Tech
Choose the EISA K686 Pro for wireless flexibility and switch customization, or the PENUMBRA K687 HE for competitive gaming features and a premium aluminum build.
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Which one should you get?
Get the
Redragon EISA K686 Pro
Wireless
- Tri-mode wireless connectivity (Bluetooth, 2.4GHz, USB-C wired).
- Hot-swappable sockets for easy switch replacement.
- Includes a full set of accessories: puller, spare switches, and a nano receiver.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
Get the
Redragon PENUMBRA K687 HE
Gaming Tech
Build quality in the top 40% of 75% boards under $100.
- Features Hall Effect magnetic switches with adjustable actuation (0.1-3.4mm).
- Includes rapid trigger technology for competitive gaming.
- CNC aluminum frame and aluminum plate for a premium, solid build.
- Magnetic switches only. Standard MX switches will not fit.
- No numpad.
Your primary need dictates the choice. For a flexible, daily-driver keyboard that can connect wirelessly to multiple devices and lets you experiment with different switches, the Redragon EISA K686 Pro is the logical pick. If your focus is purely on maximizing gaming performance with the latest magnetic switch technology and you prefer a wired, premium metal build, the Redragon PENUMBRA K687 HE is the specialized tool for the job.
The differences that matter
Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.
Redragon EISA K686 Pro
Redragon PENUMBRA K687 HE
Layout size
90%
75%
Hall effect (magnetic)
No
Yes
Adjustable actuation helps in games and not in normal typing
Rapid trigger
No
Yes
Faster resets help in games and not in normal typing
Connection
Bluetooth, 2.4 GHz, Wired
Wired
Wireless for several devices and wired for lower latency
Hot-swappable
Yes
No
Switch changes without soldering
- Redragon EISA K686 Pro
- Redragon PENUMBRA K687 HE
- Performance
- 7886
- Build quality
- 6969
- Productivity
- 8377
- Customizability
- 7354
- Portability
- 5460
- Mount style: Gasket Mount
- Knob
- Sound dampening
- Keycaps: PBT
What will you mostly use it for?
The EISA K686 Pro is the more versatile choice, winning for office use, programming, travel, and modding due to its wireless options, larger layout, and hot-swap capability. The PENUMBRA K687 HE is the clear pick for dedicated gaming, leveraging its Hall Effect switches and rapid trigger. For content creation, both offer useful media knobs and macro support, making it a tie.
Pick the Redragon PENUMBRA K687 HE
- Features dedicated Hall Effect magnetic switches for potentially faster response.
- Includes software-adjustable rapid trigger technology for dynamic actuation.
- Built with a heavier, tank-solid CNC aluminum frame for stability.
Redragon EISA K686 Pro vs PENUMBRA K687 HE specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
14 of 24 specs differ
Redragon EISA K686 Pro
Redragon PENUMBRA K687 HE
Switch options
Hall effect (magnetic)
Rapid trigger
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Backlight
N-key rollover
Mac & Windows
Released
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Redragon EISA K686 Pro vs PENUMBRA K687 HE: your questions
The product listing does not mention hot-swap sockets for the PENUMBRA K687 HE. It uses dedicated, soldered Hall Effect magnetic switches that Redragon states are not cross-compatible with other brands.
Yes. The Redragon EISA K686 Pro features Bluetooth connectivity, allowing it to pair with mobile devices like phones and tablets. It also includes a 2.4GHz wireless dongle for a lag-free connection to computers.
Rapid trigger is a gaming feature that, when enabled via software, allows for dynamic actuation. It can make key presses faster by resetting the actuation point before the key fully returns, which is beneficial for rapid keystrokes in competitive games.
Yes, both the Redragon EISA K686 Pro and the PENUMBRA K687 HE include a multi-function control knob. According to their listings, these knobs can adjust volume, control media playback, and adjust backlight brightness.
Both use gasket mount designs and sound dampening for a softer typing feel. The PENUMBRA K687 HE has a more extensive five-layer foam system for potentially better sound dampening, while the EISA K686 Pro's hot-swap feature allows you to install switches specifically chosen for typing comfort.
Yes, according to the specifications, both the Redragon EISA K686 Pro and the PENUMBRA K687 HE use PBT keycaps. PBT plastic is generally more durable and resistant to shine than ABS.
The Redragon EISA K686 Pro comes with linear red switches pre-installed. Its hot-swappable sockets support both 3-pin and 5-pin switches, allowing you to change them easily.
The manufacturer lists OS support for Windows, macOS (basic functions), and Linux (basic functions). Advanced features like rapid trigger adjustment require software, which has driver support for Windows and a web-based driver.
The Redragon PENUMBRA K687 HE is more compact, with a 75% layout (81 keys) and dimensions of 334mm in length. The EISA K686 Pro is a 90% layout (98 keys) and is 430mm long.
Yes, both keyboards support software for customization. The EISA K686 Pro software allows for macro programming and lighting effects. The PENUMBRA K687 HE software is used to enable and adjust the rapid trigger feature and actuation points.
Both include the keyboard, a detachable USB Type-C cable, a keycap and switch puller, four spare switches, a sticker, and a user manual. The EISA K686 Pro also includes a 2.4GHz nano receiver for wireless use.
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