Compare Redragon PENUMBRA K687 HE vs Yunzii RT Pro HE Differences Side by Side

This comparison is for buyers deciding between two similarly priced 75% Hall Effect keyboards with rapid trigger. The choice hinges on a core trade-off: the Redragon offers a solid, wired-only aluminum build, while the Yunzii provides tri-mode wireless connectivity and a higher specified polling rate. Both feature sound-dampening foam and adjustable actuation, making the decision about connectivity and material preferences.

Model
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Rating	0.0 stars (0 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Has Magnetic switch options Uses a Gasket Mount mounting style Supports Wired, Wired only connectivity Weighs about 1500 g Sized at 43 x 334 x 140 mm Made with a Aluminum case Features PBT keycaps Offers Yes, Rgb RGB lighting	Has Linear, Magnetic switch options Supports hot-swappable switches Features N-key rollover Uses a Top Mount mounting style Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity Runs at a 8000 Hz polling rate Equipped with a 8000 mAh battery Weighs about 1129 g Sized at 38 x 332 x 137 mm Features PBT, PC keycaps Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Score	Scores Performance: 86.6 Build Quality: 69.9 Productivity: 78 Customizability: 55.4 Portability: 60.9	Scores Performance: 98.6 Build Quality: 56.9 Productivity: 83.4 Customizability: 66.7 Portability: 91.6
Name	Name Redragon PENUMBRA K687 HE	Name Yunzii RT Pro HE
Release year	Release year 2025	Release year 2025
Switch Options	Switch Options Magnetic	Switch Options Linear, Magnetic
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 75%	Layout Size 75%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support
Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough
Connection	Connection Wired, Wired only	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate -	Polling Rate 8000 Hz
Battery capacity	Battery capacity -	Battery capacity 8000 mAh
Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Gasket Mount	Mount Style Top Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb	Backlight Rgb, South-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum	Case Material -
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT, PC
Dimensions	Dimensions 43 x 334 x 140 mm	Dimensions 38 x 332 x 137 mm
Weight	Weight 1500g	Weight 1129g

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Pros and Trade-offs

Your primary need dictates the choice. If you require wireless freedom for a clean desk, device switching, or portability, the Yunzii RT Pro HE is the clear option with its tri-mode connectivity and high wireless polling rate. If you prefer a stationary, wired setup with a heavier aluminum chassis and gasket mount, the Redragon Penumbra K687 HE is the better fit, though its switch compatibility is limited.

Redragon PENUMBRA K687 HE

+CNC aluminum case with a frosted finish for a solid build.
+Gasket mount design for a potentially softer typing feel.
+Includes 5-layer noise dampening with PO foam, IXPE, PET, and silicone.
+Comes with spare switches and a keycap puller in the box.

−Wired-only connectivity limits placement and portability.
−Heavier at 1500 grams, making it less portable.
−Uses Redragon-exclusive Hall Effect switches that are not cross-compatible with other brands.

Yunzii RT Pro HE

+Tri-mode connectivity with Bluetooth, 2.4 GHz, and wired USB-C.
+Specifies an 8000 Hz polling rate in wired and 2.4G modes.
+Hot-swappable PCB allows for easy switch replacement.
+Lighter weight of 1129g and includes a large 8000mAh battery.

−Top mount design may offer a different typing feel than gasket mount.
−Case material is not specified as aluminum in the provided metadata.
−Bluetooth polling rate is specified at 125 Hz, which is much lower than its other modes.

Which Keyboard Is Better for Your Needs?

The Yunzii RT Pro HE wins in more categories, particularly where wireless versatility, lighter weight, and modding potential are key. It is the clear choice for travel, office use with multiple devices, and gamers wanting wireless options. The two keyboards tie for programming and content creation due to their similar core layouts and media controls. The Redragon Penumbra K687 HE's strengths are its wired-only, heavier aluminum construction.

GamingYunzii RT Pro HE

•The Yunzii RT Pro HE specifies an 8000 Hz polling rate in wired and 2.4G modes.
•It offers tri-mode connectivity, including a low-latency 2.4 GHz wireless option for gaming.
•Both keyboards feature Hall Effect switches and rapid trigger technology.

OfficeYunzii RT Pro HE

•The Yunzii RT Pro HE supports Bluetooth for easy switching between multiple devices.
•Its lighter weight (1129g) may be easier to reposition on a desk.
•The manufacturer describes it as a silent mechanical keyboard ideal for office use.

ProgrammingTie

•Both use a 75% layout with 81 keys and a knob, preserving arrow and function keys.
•Both have PBT keycaps for durability.
•Both list software or web driver support for key remapping and macros.

TravelYunzii RT Pro HE

•The Yunzii RT Pro HE is significantly lighter at 1129g versus 1500g.
•It has a built-in 8000mAh battery for wireless use.
•Bluetooth connectivity removes the need for a cable when moving.

ModdingYunzii RT Pro HE

•The Yunzii RT Pro HE is listed as hot-swappable, allowing switch changes.
•Its vendor description mentions compatibility with magnetic switches from brands like Gateron.
•The Redragon Penumbra K687 HE uses Redragon-exclusive switches noted as not cross-compatible.

Content CreationTie