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Head to head · Prices checked Nov 7, 2026

Redragon EISA MAX K686 vs PENUMBRA K687 HEWireless vs Gaming Tech

Choose the EISA MAX K686 for wireless flexibility and a full layout, or the PENUMBRA K687 HE for competitive gaming features like Hall Effect switches and rapid trigger.

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Quick verdict

Which one should you get?

Get the

Redragon EISA MAX K686

Wireless

If you want

  • Tri-mode wireless connectivity (Bluetooth, 2.4GHz, USB-C wired).
  • Hot-swappable PCB compatible with 3-pin and 5-pin switches.
  • Includes a dedicated multi-function control knob.

Get the

Redragon PENUMBRA K687 HE

Gaming Tech

Build quality in the top 40% of 75% boards under $100.

If you want

  • Features Hall Effect magnetic switches with adjustable actuation from 0.1mm to 3.4mm.
  • Includes software-enabled rapid trigger technology for gaming.
  • CNC aluminum frame with a frosted finish for a premium build.

Rules this board out

  • Magnetic switches only. Standard MX switches will not fit.
  • No numpad.

Bottom line

Your primary need dictates the choice. For a versatile, wireless daily driver with a numpad and easy modding, the Redragon EISA MAX K686 is the better value. If your focus is purely on competitive gaming performance with features like rapid trigger and Hall Effect switches, and you don't mind a wired connection, the Redragon PENUMBRA K687 HE is the specialized tool, though its availability may be limited.

What actually differs

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 MAX K686

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

KeebFinder scores

How we score
  • Redragon EISA MAX K686
  • Redragon PENUMBRA K687 HE
Performance
66
86
Build quality
63
69
Productivity
83
77
Customizability
67
54
Portability
52
60

What they share

  • Mount style: Gasket Mount
  • Knob
  • Sound dampening
  • Keycaps: PBT
See every spec side by side

Best for

What will you mostly use it for?

The EISA MAX K686 wins for office use, travel, and content creation due to its wireless connectivity, included numpad, and media knob. The PENUMBRA K687 HE is the clear choice for dedicated gaming, leveraging its Hall Effect switches and rapid trigger. For programming, it's a tie based on layout preference, while modders will favor the EISA MAX for its standard hot-swap compatibility.

For gaming

Pick the Redragon PENUMBRA K687 HE

  • The PENUMBRA K687 HE features dedicated Hall Effect magnetic switches, which the manufacturer states eliminate physical input delay.
  • It includes software-adjustable rapid trigger technology for precise actuation control.
  • Its 75% layout provides more mouse movement space compared to the 96% EISA MAX.

Full specs

Redragon EISA MAX K686 vs PENUMBRA K687 HE specs

Every tracked spec, side by side. Rows marked with a dot differ between the boards.

10 of 21 specs differ

Redragon EISA MAX K686

Redragon PENUMBRA K687 HE

Typing & switches

Switch options

Linear
Magnetic

Hall effect (magnetic)

No
Yes

Rapid trigger

No
Yes

Hot-swappable

Yes
No

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Layout

Layout size

90%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

None
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Wired

USB-C

Yes
Yes

Build & materials

Case material

Plastic
Aluminum

Plate material

—
Aluminum

Keycaps

PBT
PBT

Weight

1,200 g
1,500 g

Dimensions

90 x 430 x 90 mm
43 x 334 x 140 mm

Backlight

RGB
RGB

Firmware & software

Mac & Windows

Yes
Yes

Extras

Released

2024
2025

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

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FAQ

Redragon EISA MAX K686 vs PENUMBRA K687 HE: your questions

The Redragon EISA MAX K686 offers tri-mode wireless connectivity, including Bluetooth, 2.4GHz via a nano receiver, and a USB-C wired option. The PENUMBRA K687 HE is a wired-only keyboard.

The product listing does not mention a hot-swappable socket for the PENUMBRA K687 HE. It uses dedicated, proprietary Hall Effect magnetic switches. In contrast, the EISA MAX K686 explicitly lists a hot-swappable socket.

Rapid trigger is a feature on the PENUMBRA K687 HE that, when enabled via software, allows for dynamic actuation. This means a key can be re-pressed without fully releasing it, which is beneficial for fast, repeated keystrokes in gaming.

Both keyboards use PBT keycaps and a gasket mount design with multiple sound-dampening foam layers for a comfortable typing experience. The choice may come down to layout preference: the EISA MAX has a 96% layout with a numpad, while the PENUMBRA uses a more compact 75% layout.

No. According to the manufacturer, the Hall Effect magnetic switches in the Redragon PENUMBRA K687 HE are exclusive to Redragon and are not cross-compatible with other brands' Hall Effect switches.

Both keyboards include a detachable USB-C cable, a keycap and switch puller, four spare switches, a sticker, and a user manual. The EISA MAX K686 additionally includes a wireless nano receiver.

The EISA MAX K686 has a plastic case. The PENUMBRA K687 HE features a CNC aluminum frame with a frosted finish, which generally offers a more premium and sturdy feel.

Yes, but only on the PENUMBRA K687 HE. Its software allows you to adjust the actuation point of its Hall Effect switches from 0.1mm to 3.4mm. The EISA MAX K686 uses standard linear switches with a fixed actuation point.

Both the Redragon EISA MAX K686 and the PENUMBRA K687 HE include a dedicated multi-function control knob for adjusting volume, media playback, and backlight brightness.

Yes. Both keyboards list software support. The EISA MAX software allows for macro programming and lighting effects. The PENUMBRA software is specifically needed to enable and adjust its rapid trigger feature and actuation points.

A 75% layout, like on the PENUMBRA K687 HE, is more compact. It removes the numpad, function row, and navigation cluster, keeping only the main alphanumeric block and a column of essential keys. The 96% layout on the EISA MAX K686 keeps the numpad but shrinks the spacing between keys.

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