Click the coupon code for a discount. Features and specs may vary by model version.
The price history chart tracks the lowest price over time across all stores, excluding Amazon (shipping costs not included).
| FE 21.3 Helios 88 | Promotype Key Boy Advance 50 | Wired In Sonoma |
83 Overall/ Value 82.5Build Quality 82.2Customizability 86.5Performance 67.7Productivity 77.9Portability 48.4![]() | ||
0.0 stars (0 reviews) | 0.0 stars (0 reviews) | 0.0 stars (0 reviews) |
|
|
|
Scores
| Scores
| Scores
|
Name FE 21.3 Helios 88 | Name Promotype Key Boy Advance 50 | Name Wired In Sonoma |
Release year 2025 | Release year 2026 | Release year 2026 |
Switch Options - | Switch Options - | Switch Options - |
Profile Normal Profile | Profile Normal Profile | Profile Normal Profile |
Hot Swappable | Hot Swappable | Hot Swappable |
Layout Size Unknown | Layout Size Unknown | Layout Size Unknown |
Layout Standard ANSI | Layout Standard ANSI | Layout Standard ANSI |
Layout Ergonomics Normal | 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 Wired, Wired only |
Polling Rate - | Polling Rate - | Polling Rate - |
Battery capacity - | Battery capacity - | Battery capacity - |
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 Top Mount | Mount Style - | Mount Style Gasket Mount |
Screw in Stabilizers | Screw in Stabilizers | Screw in Stabilizers |
Sound Dampening | Sound Dampening | Sound Dampening |
Backlight | Backlight | Backlight |
Case Colors | Case Colors | Case Colors |
Case Material Aluminum | Case Material Polycarbonate | Case Material Aluminum, Polycarbonate |
Keycaps Material - | Keycaps Material - | Keycaps Material - |
Dimensions - | Dimensions - | Dimensions 34 x 340 x 116 mm |
Weight 2400g | Weight - | Weight - |
The KBDFans Helios 88 is a mechanical keyboard designed for users who want a compact layout with a numpad, suitable for both typing and moderate customization. It supports both soldered and hot-swappable switches, making it a good choice for hobbyists who like to experiment with different switch types without soldering. Its solid build and multiple material options offer a stable typing platform, appealing to users who value durability and customization in their setup.
The case is made from aluminum, providing a sturdy and rigid frame. The keyboard uses a top mount style, which typically offers a firmer typing feel compared to gasket-mounted designs. The front badge and internal weights come in different materials and finishes, allowing some visual and tactile customization. The overall construction supports long-term use with minimal flex.
The 8° typing angle and 19mm front height create a comfortable wrist position for extended typing sessions. The variety of plate materials available as add-ons lets users adjust the keyboard’s acoustics and keypress feedback. The solid case and internal weights contribute to a stable base, which can reduce unwanted noise and vibrations. Sound characteristics will vary depending on the chosen plate and switches.
The Helios 88 supports WK/WKL layouts, which include a numpad in a compact form factor. The PCB is compatible with VIA software, allowing users to remap keys and customize lighting if supported. It is suitable for most operating systems that support standard USB keyboards. Connectivity is wired only, with no wireless options.