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Head to head · Prices checked Nov 11, 2026

Mechboards CFTKB Mysterium Kit V1 vs Ganss Hello XSDIY Kit or Wireless 75%

Choose the Mysterium V1 for an ANSI or ISO DIY build, or the Hello XS for a pre-built board with hot-swap and wireless connectivity.

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Quick verdict

Which one should you get?

Get the

Mechboards CFTKB Mysterium Kit V1

Build quality in the bottom 15% of 75% boards under $100.

If you want

  • 75% layout with ANSI and ISO support.
  • DIY kit includes FR4 switch and bottom plates, PCB, components, and acrylic pieces.
  • Includes screws, standoffs, rubber feet, and a controller with bootloader pre-installed.

Rules this board out

  • Switches are soldered. Swapping them means soldering.

Get the

Ganss Hello XS

Hot-swappable

Build quality in the bottom 50% of 75% boards under $100.

If you want

  • Pre-built 75% keyboard with Bluetooth, 2.4 GHz, and wired connectivity.
  • Full-keyboard hot-swappable sockets and a hot-swappable volume knob.
  • Gasket mount, sound dampening, and screw-in stabilizers.

Rules this board out

  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.

Bottom line

Pick the Mechboards CFTKB Mysterium Kit V1 if you want to assemble a 75% board or need ISO support, and are prepared to solder its switches. Choose the Ganss Hello XS if you prefer a pre-built keyboard with hot-swap, wireless connectivity, and integrated controls.

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.

Mechboards CFTKB Mysterium Kit V1

Ganss Hello XS

  • Hot-swappable

    No

    Yes

    Switch changes without soldering

  • Knob

    No

    Yes

  • Display

    None

    Yes

    A case display rather than a typing feature

  • Sound dampening

    No

    Yes

  • Layout standard

    ANSI, ISO

    ANSI

    ISO and JIS exist so regional layouts fit

KeebFinder scores

How we score
  • Mechboards CFTKB Mysterium Kit V1
  • Ganss Hello XS
Performance
43
50
Build quality
48
65
Productivity
43
91
Customizability
46
82
Portability
56
79

What they share

  • Layout size: 75%
See every spec side by side

Best for

What will you mostly use it for?

The Hello XS has the clearer advantage for buyers seeking a ready-to-use keyboard, wireless connections, or built-in controls. The Mysterium V1 is the option here with ISO support and a DIY assembly format. Programming is a closer call because the boards share a 75% layout but offer different layout and switch-change options. For modding, the Hello XS's hot-swap sockets make switch changes easier, while the Mysterium V1 is suited to buyers who specifically want to build a kit.

For gaming

Pick the Ganss Hello XS

  • The Hello XS offers Bluetooth, 2.4 GHz, and wired connectivity, while the Mysterium V1 is presented as a DIY kit.
  • The Hello XS has a gasket mount and linear switches listed in its specifications.
  • The Hello XS includes RGB lighting, while the Mysterium V1 has no RGB.

Full specs

Mechboards CFTKB Mysterium Kit V1 vs Ganss Hello XS specs

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

11 of 22 specs differ

Mechboards CFTKB Mysterium Kit V1

Ganss Hello XS

Typing & switches

Switch options

—
Linear

Hot-swappable

No
Yes

Mount style

—
Gasket Mount

Sound dampening

No
Yes

Screw-in stabilizers

No
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI, ISO
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
Yes

Media keys

No
Yes

Connectivity & battery

Connection

—
Bluetooth, 2.4 GHz, Wired

Battery

—
3,750 mAh

USB-C

No
Yes

Build & materials

Case material

Acrylic
—

Plate material

FR4
—

Keycaps

—
PBT

Weight

—
870 g

Dimensions

—
21 x 139 x 327 mm

Backlight

None
RGB

Firmware & software

Mac & Windows

No
Yes

Extras

Released

2021
2023

For EU buyers

ISO layouts by store

Which stores sell ISO-DE, UK, and the other regional layouts.

Mechboards CFTKB Mysterium Kit V1

Listed on the product, not split by store: ISO.

Ganss Hello XS

No ISO layout at the stores we track.

Where to buy

Compare prices

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

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Lowest price across stores, Amazon excluded.

FAQ

Mechboards CFTKB Mysterium Kit V1 vs Ganss Hello XS: your questions

No. Its switches are soldered, so changing them requires soldering. The Ganss Hello XS has full-keyboard hot-swappable sockets.

Yes, the Mysterium V1 PCB supports ANSI and ISO layouts. The Hello XS is listed as ANSI only and does not offer ISO variants.

Yes, it supports Bluetooth and 2.4 GHz wireless connections, as well as wired USB-C. The Mysterium V1 is sold as a DIY kit, and wireless connectivity is not listed for it.

The Ganss Hello XS is listed as pre-built. The Mysterium V1 is a DIY kit that includes components such as its PCB, FR4 plates, controller, and acrylic pieces.

The Hello XS has full-keyboard hot-swappable sockets, so its switches can be changed without soldering. The Mysterium V1 uses soldered switches, which require soldering to swap.

The Hello XS supports Bluetooth, 2.4 GHz, and wired USB-C connections. Its vendor description also says it can switch between connected devices.

Yes, the Hello XS includes a screen and a multimedia volume knob. Its vendor description calls the display customizable and says the knob has a hot-swappable design.

The vendor lists FR4 switch and bottom plates, a PCB, components, a controller with bootloader pre-installed, acrylic pieces, screws, standoffs, and rubber feet. The kit does not include plate foam.

The Ganss Hello XS has RGB lighting, described by its vendor as dynamic RGB backlighting. The Mysterium V1 is listed without RGB.

The product specifications list linear switches for the Hello XS. Its vendor description shows several switch options, including GANSS Silver Yuepo Linear, KTT Hyacinth, KTT Pink, and KTT Purple.

Its vendor warns that the USB-C connector is hard to solder and recommends experienced users. The switches are also soldered, so assembly involves soldering work.

The Hello XS is listed at 870 g and measures 21 x 139 x 327 mm. A weight is not listed for the Mysterium V1, so these details do not establish which keyboard is lighter.

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