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Compare Redragon EISA K686 Pro vs PENUMBRA K687 HE Differences Side by Side

This comparison is for buyers deciding between two feature-packed Redragon keyboards at different priorities. The EISA K686 Pro offers tri-mode wireless connectivity and hot-swap sockets in a 98-key layout. The PENUMBRA K687 HE focuses on gaming performance with Hall Effect magnetic switches, rapid trigger technology, and a CNC aluminum case. The decision hinges on whether you value wireless versatility or cutting-edge gaming specs.

71
EISA K686 PRO
70
PENUMBRA K687 HE Rapid Trigger Gaming Keyboard

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  • Released in 2024
  • Has Linear switch options
  • Supports hot-swappable switches
  • Available in a 90% layout
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Weighs about 1060 g
  • Sized at 90 x 430 x 90 mm
  • Made with a Plastic case
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
  • Released in 2025
  • Has Magnetic switch options
  • Available in a 75% layout
  • Utilizes Hall effect sensors
  • Enables rapid trigger functionality
  • Supports Wired, Wired only connectivity
  • Weighs about 1500 g
  • Sized at 43 x 334 x 140 mm
  • Made with a Aluminum case
  • Offers Yes, Rgb RGB lighting
Scores
  • Performance: 65.4
  • Build Quality: 63.2
  • Productivity: 83
  • Customizability: 66.9
  • Portability: 51.8
Scores
  • Performance: 86.7
  • Build Quality: 69.8
  • Productivity: 78.2
  • Customizability: 55.7
  • Portability: 60.7
Name
Redragon EISA K686 Pro
Name
Redragon PENUMBRA K687 HE
Release year
2024
Release year
2025
Switch Options
Linear
Switch Options
Magnetic
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
90%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Wired, Wired only
Polling Rate
-
Polling Rate
-
Battery capacity
-
Battery capacity
-
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
Gasket Mount
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, South-face
Backlight
 
Rgb
Case Colors
Case Colors
Case Material
Plastic
Case Material
Aluminum
Keycaps Material
PBT
Keycaps Material
PBT
Dimensions
90 x 430 x 90 mm
Dimensions
43 x 334 x 140 mm
Weight
1060g
Weight
1500g
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Pros and Trade-offs

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.

Redragon EISA K686 Pro

  • +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.
  • +98-key layout provides a numpad in a compact form factor.
  • +Software support for creating macros and lighting effects.
  • −Plastic case construction, compared to the aluminum alternative.
  • −Uses standard linear mechanical switches, not Hall Effect.
  • −Lacks advanced gaming features like rapid trigger.

Redragon PENUMBRA K687 HE

  • +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.
  • +Extensive five-layer noise dampening system for a quieter typing experience.
  • −Wired-only connectivity, no wireless options.
  • −Hall Effect switches are listed as Redragon exclusive and not cross-compatible.
  • −Heavier weight (1500g) and lacks height adjustment.

Which Keyboard Is Better for Your Needs?

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.

GamingRedragon 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.
OfficeRedragon EISA K686 Pro
  • •Offers tri-mode connectivity (Bluetooth, 2.4GHz, wired) for connecting to multiple devices.
  • •Includes a full 98-key layout with a numpad for data entry.
  • •Has a side button for seamless switching between Windows and Mac systems.
ProgrammingRedragon EISA K686 Pro
  • •Provides a 98-key layout that retains the numpad and arrow keys.
  • •Hot-swappable sockets allow for easy switch replacement to preferred typing feels.
  • •Wireless modes reduce cable clutter on the desk.
TravelRedragon EISA K686 Pro
  • •Is lighter at 1060g compared to the 1500g PENUMBRA.
  • •Wireless functionality eliminates the need to carry or connect a cable.
  • •Its plastic case may be less prone to showing travel wear than aluminum.
ModdingRedragon EISA K686 Pro
  • •Features hot-swappable sockets compatible with 3-pin and 5-pin switches.
  • •Includes sound-dampening with a PO pad and foams, but allows for aftermarket foam changes.
  • •Comes with a keycap and switch puller and four spare switches in the box.
Content CreationTie
  • •The EISA K686 Pro's dedicated knob offers quick media and volume control.
  • •The PENUMBRA K687 HE's knob also controls media and backlight.
  • •Both support software for macro programming, which can streamline editing workflows.

Frequently Asked Questions (FAQ)

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