What Makes a Keyboard Worth Using Every Day

Most keyboards ship with compromises baked in. Fixed switches you can’t change. Hollow typing sound that bounces off the case. Connectivity that stutters the moment you move the dongle an inch. DAIDAI took a different approach — each model in the lineup is built around the things that actually matter once the novelty wears off.

The gasket mount structure is probably the most immediately noticeable difference. Instead of the PCB sitting rigidly against a plate, it’s suspended between layers of silicone and foam. The result is a typing feel that has real bounce to it, and a sound profile that stays clean without resonating in the cavity. Combined with south-facing RGB that shines directly under the keycap legends rather than behind them, the visual output is noticeably sharper too.

Hot-swappable PCBs supporting both 3-pin and 5-pin switches mean you’re not locked into whatever came in the box. That flexibility alone separates these boards from a large chunk of what’s available at the same price.

The AK870 — Wireless TKL With Gasket Architecture

Three-Mode Connectivity in a Compact Frame

The daidai ajazz keyboard lineup includes the AK870, a TKL 87-key board that saves roughly 15% desktop space compared to a traditional full-size layout without cutting any functional keys. What makes it stand out isn’t the size — it’s the engineering inside. The gasket structure here uses five distinct sound-absorbing layers: Poron sandwich cotton, IXPE lower shaft soft pad, PET sound pad, bottom cotton, and bottom silicone. That stack of materials isn’t decorative — each layer targets a different frequency of resonance.

Connectivity runs across three modes: wired USB-C (the port works from both sides), 2.4G wireless for low-latency gaming or productivity, and Bluetooth 5.1 with a built-in 4000mAh battery. Multiple devices can be paired and switched freely in Bluetooth mode. Windows 7 and below are limited to wired or 2.4G — Bluetooth requires a newer OS, which is worth knowing before you order.

Switches, Keycaps, and Per-Key Slotted PCB

The PCB uses a single-key slotted design — each switch position has its own flex cut, which stabilizes the keystroke and keeps wobble minimal. Pre-lubricated linear switches come ready to type straight out of the box, and the hot-swap PCB accepts virtually any MX-style switch on the market. The daidai ajazz ak820 and AK870 share this design philosophy, though the AK870 extends it with wireless capability.

Double-color injection molded PBT keycaps resist shine and wear over time. The south-facing LED position means backlighting hits the front face of each keycap rather than washing out from behind — 20 default lighting modes are accessible via FN shortcuts, and deeper RGB customization is available through the driver software.

AK820 — The 75% Layout That Actually Has Everything

Compact Without Cutting Corners

The daidai ajazz ak820 runs an 82-key 75% layout — slightly larger than a 65% but smaller than a TKL, and it keeps the function row intact. That layout choice is deliberate. You get the dedicated F-keys, a non-slip metal volume knob in the top-right corner, and roughly 30% more mouse space compared to a full-size board. For anyone who games and wants more room without sacrificing key access, the AK820 hits a practical middle ground.

The gasket mount here uses Poron sandwich cotton combined with high-density foam between the plate and PCB. Hollow resonance — that clacky, empty ping some boards have — gets absorbed before it reaches the case. The typing sound profile lands on the creamy, thocky end of the spectrum, which has become one of the more requested characteristics among custom keyboard builders.

PBT Keycaps and RGB Done Right

Double-shot PBT keycaps cover the board. They’re oil-resistant, the legends won’t fade, and the texture stays consistent even after heavy daily use. South-facing RGB means the light source sits at the south side of each switch, shining directly onto the keycap face — the lighting is more vivid and defined compared to north-facing designs, which can create light bleed and shine-through artifacts.

Twenty default lighting modes come built-in. If you want to go further — custom per-key colors, music sync, or remapped layers — the daidai keyboard driver handles that through the companion software. The detachable USB-C cable connects cleanly and supports stable wired use for zero-latency performance. Mac and Windows both work without configuration changes.

AK35I V4 — Full Size With a Screen and 10,000mAh Battery

When Battery Life Becomes a Non-Issue

The AK35I V4 takes the full 104-key layout and adds things you don’t usually see at this tier. The 10,000mAh rechargeable battery is the headline spec — extended wireless use without reaching for a cable becomes genuinely practical rather than aspirational. Bluetooth 5.0, 2.4GHz wireless, and detachable USB-C wired mode are all supported, covering Windows, Mac, iOS, and Android.

The 1.14-inch TFT color display sits on the board and shows real-time status: date, time, battery level, OS mode, and connection type. You can upload custom images or GIF animations through the daidai software, which gives the board a personalized look that no amount of RGB alone achieves. The multi-function knob adjusts volume, switches connectivity modes, tweaks lighting, and navigates the screen menu — all without touching a keyboard shortcut.

Build Quality on the AK35I V4

Five layers of silicone and foam sit between the FR4 plate and the switches. The gasket structure with flex-cut PCB grooves adds elasticity to each keystroke — the board flexes slightly under pressure, which reduces fatigue during long typing sessions. Cavity noise and pinging are effectively eliminated by the dampening stack.

The hot-swappable PCB accepts 3-pin and 5-pin switches. Side-illuminated RGB light strips sync to music rhythm, and 16.8 million colors across 20 default modes give you a wide range without needing to touch the software. That said, the daidai software unlocks per-key customization and macro programming that goes well beyond the default presets.

Keycaps and Compatibility Across the Lineup

MOA Profile vs Standard Profiles

The AK870 ships with MOA profile keycaps — a spherical, uniform-height profile that differs from the more common Cherry or OEM shapes. MOA keycaps have a slightly concave top surface on every row, which can feel more natural for touch typists who move their fingers laterally across rows. If you’ve been using Cherry-profile boards for years, there’s a short adjustment period, but most users find the transition comfortable within a few days.

The ajazz ak650 keycaps profile is a separate consideration for users looking to swap or upgrade keycaps on compatible boards. Profile matching matters more than most buyers realize — mixing profiles on the same board creates uneven finger travel and disrupts muscle memory. DAIDAI’s lineup uses profiles consistently within each model, so replacement or upgrade sets should be matched to the specific board.

PBT construction across the lineup means keycap legends stay legible and the surface stays textured. Double-shot molding — where the legend is a separate layer of plastic rather than printed ink — means the characters physically cannot wear away.

Software, Drivers, and Programmability

The daidai software works as the central hub for customization across supported boards. Key remapping, macro assignment, RGB per-key lighting, and screen content uploads for the AK35I V4 are all handled here. The daidai keyboard driver installation is straightforward on both Windows and Mac, and the interface doesn’t require technical knowledge to navigate.

Lighting customization goes beyond the 20 built-in modes. Music rhythm sync is available on the AK35I V4 and AK820, which pulses the backlight in response to audio output. Macro layers can be assigned per-application or triggered by FN combinations. For gaming, that level of input remapping is useful — for office setups, the ability to create custom shortcuts for frequently used commands is a practical productivity tool.

One thing worth noting: the AK870 also uses the driver for RGB customization beyond FN shortcuts. The interface is the same across models, so switching between boards doesn’t require learning a new tool.

Gasket Mount Explained — Why It Matters

Gasket mount has become one of the most discussed structural choices in mechanical keyboards, and for good reason. In a traditional tray or top-mount design, the PCB or plate is screwed directly to the case. Sound travels directly through rigid contact points. Gasket mount interrupts that path — the plate sits inside a ring or layer of silicone that absorbs vibration before it reaches the case walls.

The practical difference is audible and tactile. Keystrokes feel more cushioned. High-pitched resonance — the “ping” associated with metal plates in screw-mount boards — doesn’t develop. The typing sound becomes rounder and more controlled. DAIDAI builds this structure into the AK870, AK820, and AK35I V4 with varying numbers of dampening layers depending on the model, which is part of why each board has a slightly different acoustic character while sharing the same general feel.