Redragon DHARMA K556 HE vs EISA K686 HEFull-Size Aluminum vs Compact 98%

The core difference is the layout and case. The DHARMA K556 HE is a full-size 104-key keyboard with an aluminum base. The EISA K686 HE is a compact 90% layout with 98 keys, a plastic case, a gasket mount, and includes a dedicated control knob.

Yes. Both the DHARMA and EISA use proprietary Redragon Hall Effect magnetic switches. They are not cross-compatible with other brands' Hall Effect switches according to the vendor descriptions.

Yes. Both keyboards support software-adjustable actuation points, with a range from 0.1mm to 3.4mm. This feature, combined with rapid trigger technology, is a key selling point for both models.

Based on construction details, the EISA K686 HE may have an advantage for modders seeking a specific sound. Its vendor description specifically mentions a 5-layer noise dampening system using 3.5mm PORON foam and bottom case foam. The DHARMA also includes dual-layer dampening.

No. Both the Redragon DHARMA K556 HE and EISA K686 HE are wired-only keyboards, using a detachable USB Type-C cable for connection.

Both keyboards feature an 8000 Hz hyper-polling rate, which translates to a reported latency of 0.125ms for the EISA. This is a top-tier specification for gaming responsiveness.

Both keyboards use standard PBT keycaps, which are wear-resistant. They come with keycap pullers, so you can replace them with other MX-style keycaps. However, the switches are soldered and not hot-swappable with third-party magnetic switches.

Only the Redragon EISA K686 HE includes a dedicated multi-function control knob. The vendor listing states it can be used to adjust backlight brightness and media settings. The DHARMA does not have a knob.

Yes. Both keyboards support customization through software. Redragon provides web-based driver support in addition to a Windows client, allowing users on other operating systems to access features like RGB programming and actuation adjustment via a browser.

The EISA K686 HE is more portable due to its compact 90% layout, measuring approximately 430mm in width. While both are heavy wired boards, the smaller footprint of the EISA makes it easier to fit in a backpack or use on a constrained desk space.

Only the Redragon DHARMA K556 HE has a full number pad as part of its 104-key layout. The Redragon EISA K686 HE uses a 98-key compact layout that omits the numpad to save space.

Both keyboards come with a detachable USB-C cable, a keycap/switch puller, four spare magnetic switches, and a user manual. The EISA also includes a Redragon sticker according to its package list.