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Head to head · Prices checked Nov 11, 2026

Feker IK85 Plus vs Redragon PENUMBRA K687 Pro

Get the Redragon PENUMBRA K687 Pro for knob.

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Quick verdict

Which one should you get?

Get the

Feker IK85 Plus

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

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.

Get the

Redragon PENUMBRA K687 Pro

Knob

Build quality in the top 35% of 75% boards under $100.

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.

Feker IK85 Plus

Redragon PENUMBRA K687 Pro

  • Case material

    Aluminum, Plastic

    Aluminum

  • Switch options

    Clicky, Linear

    Linear

  • Knob

    No

    Yes

  • Weight

    900 g

    1,800 g

    Heavier boards stay planted and lighter ones travel

  • Backlight

    RGB, south-facing

    RGB

    RGB for looks and low light rather than speed

KeebFinder scores

How we score
  • Feker IK85 Plus
  • Redragon PENUMBRA K687 Pro
Performance
76
79
Build quality
71
73
Productivity
77
70
Customizability
62
61
Portability
81
74

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Mount style: Gasket Mount
  • Sound dampening
  • Keycaps: PBT
See every spec side by side

Full specs

Feker IK85 Plus vs Redragon PENUMBRA K687 Pro specs

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

8 of 21 specs differ

Feker IK85 Plus

Redragon PENUMBRA K687 Pro

Typing & switches

Switch options

Clicky, Linear
Linear

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, 2.4 GHz, Wired

Battery

4,000 mAh
—

USB-C

Yes
Yes

Build & materials

Case material

Aluminum, Plastic
Aluminum

Plate material

Polycarbonate, Silicone
—

Keycaps

PBT
PBT

Weight

900 g
1,800 g

Dimensions

44 x 144 x 348 mm
43 x 132 x 43 mm

Backlight

RGB, south-facing
RGB

Firmware & software

N-key rollover

Yes
Yes

Mac & Windows

Yes
No

Extras

Released

2023
2024

Where to buy

Compare prices

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

Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

Lowest price across stores, Amazon excluded.

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