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Compare Redragon DHARMA K740 PRO vs EISA K686 HE Differences Side by Side

This comparison is for buyers deciding between two feature-packed 98% keyboards from Redragon. The choice is difficult because the Dharma K740 Pro offers tri-mode wireless connectivity and a hot-swap socket, while the Eisa K686 HE focuses on cutting-edge gaming specs like an 8000 Hz polling rate, Hall effect magnetic switches, and rapid trigger technology. Both share a compact layout, PBT keycaps, RGB, and a control knob, but their core philosophies differ significantly.

70
DHARMA K740 PRO
62
EISA K686 HE Rapid Trigger Gaming Keyboard

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  • Has Linear switch options
  • Supports hot-swappable switches
  • Compatible with both Mac and Windows
  • Uses a Bottom Mount mounting style
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Runs at a 1000 Hz polling rate
  • Weighs about 1150 g
  • Sized at 42 x 378 x 129 mm
  • Made with a Aluminum case
  • Has Magnetic switch options
  • Utilizes Hall effect sensors
  • Enables rapid trigger functionality
  • Has built-in sound dampening
  • Uses a Gasket Mount mounting style
  • Supports Wired, Wired only connectivity
  • Runs at a 8000 Hz polling rate
  • Weighs about 1200 g
  • Sized at 90 x 430 x 190 mm
  • Made with a Plastic case
Scores
  • Performance: 78.9
  • Build Quality: 63.5
  • Productivity: 73.8
  • Customizability: 67.6
  • Portability: 51.9
Scores
  • Performance: 97.6
  • Build Quality: 57
  • Productivity: 62.5
  • Customizability: 48.6
  • Portability: 41.5
Name
Redragon DHARMA K740 PRO
Name
Redragon EISA K686 HE
Release year
2025
Release year
2025
Switch Options
Linear
Switch Options
Magnetic
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
90%
Layout Size
90%
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
1000 Hz
Polling Rate
8000 Hz
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
Bottom Mount
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb
Backlight
 
Rgb
Case Colors
Case Colors
Case Material
Aluminum
Case Material
Plastic
Keycaps Material
PBT
Keycaps Material
PBT
Dimensions
42 x 378 x 129 mm
Dimensions
90 x 430 x 190 mm
Weight
1150g
Weight
1200g
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Pros and Trade-offs

Your primary need dictates the choice. If you require a single, stationary setup for high-level gaming where every millisecond counts, the Eisa K686 HE's superior specs are compelling. For a more flexible daily driver that can move between devices wirelessly and allows for easy switch customization, the Dharma K740 Pro is the more practical and versatile option.

Redragon DHARMA K740 PRO

  • +Tri-mode connectivity with Bluetooth, 2.4 GHz wireless, and USB-C wired.
  • +Hot-swappable socket compatible with most 3-pin and 5-pin switches.
  • +Solid aluminum case base for a premium feel.
  • +Includes a keycap & switch puller and four spare switches.
  • +Software support for macros and lighting customization.
  • −Lower 1000 Hz polling rate compared to the Eisa K686 HE.
  • −Lacks advanced gaming features like rapid trigger or adjustable Hall effect switches.
  • −No mention of dedicated sound dampening foam in its construction.

Redragon EISA K686 HE

  • +8000 Hz hyper-polling rate for minimal input latency.
  • +Hall effect magnetic switches with 0.1-3.4mm adjustable actuation.
  • +Includes rapid trigger technology for competitive gaming.
  • +Five-layer noise dampening with PORON foam for improved acoustics.
  • +Web-based driver support for cross-platform software access.
  • −Wired-only connectivity, with no wireless option.
  • −Switches are not hot-swappable; the vendor lists it as 'Redragon Exclusive, not cross-compatible'.
  • −Plastic case construction, which may feel less premium than aluminum.
  • −Larger and heavier physical footprint than the Dharma K740 Pro.

Which Keyboard Is Better for Your Needs?

The Eisa K686 HE is the clear choice for competitive gaming due to its high polling rate and Hall effect features. For office work, programming, travel, and modding, the Dharma K740 Pro's wireless options and hot-swap capability provide more versatility. Content creators will find both keyboards equally capable with their shared media knob and RGB lighting.

GamingRedragon EISA K686 HE
  • •The Eisa K686 HE has an 8000 Hz polling rate for lower latency.
  • •It features Hall effect magnetic switches with adjustable actuation from 0.1-3.4mm.
  • •It includes dedicated rapid trigger technology for faster key resets.
OfficeRedragon DHARMA K740 PRO
  • •The Dharma K740 Pro offers Bluetooth and 2.4 GHz wireless for cable-free desk setups.
  • •Its solid aluminum base may provide a more premium, stable feel.
  • •The vendor description mentions its linear switches are suitable for office use.
ProgrammingRedragon DHARMA K740 PRO
  • •The Dharma K740 Pro's hot-swap socket allows easy switch replacement for personalized typing feel.
  • •Tri-mode connectivity offers flexibility to connect to multiple devices wirelessly.
  • •The compact 98-key layout retains the numpad while saving space.
TravelRedragon DHARMA K740 PRO
  • •The Dharma K740 Pro supports wireless operation, eliminating the need to carry a cable.
  • •It is slightly lighter at 1150g compared to the Eisa K686 HE's 1200g.
  • •Its dimensions are more compact (378mm long) than the Eisa K686 HE (430mm long).
ModdingRedragon DHARMA K740 PRO
  • •The Dharma K740 Pro has a hot-swappable socket for easy switch changes.
  • •The vendor states its socket is nearly all 3-pin and 5-pin switches compatible.
  • •It includes four spare Mint Mambo switches and a switch puller in the box.
Content CreationTie
  • •Both keyboards have a dedicated control knob for media and volume adjustment.
  • •Both feature full RGB backlighting for aesthetic setups.
  • •Both use PBT keycaps for durability during long sessions.

Frequently Asked Questions (FAQ)

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