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Head to head · Prices checked Nov 11, 2026

Redragon CASTOR K631 Pro vs NOVA K709

Choose the CASTOR K631 Pro for Bluetooth and 2.4 GHz wireless use, or the NOVA K709 for a gasket mount and three-layer noise dampening.

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Quick verdict

Which one should you get?

Get the

Redragon CASTOR K631 Pro

N-key rollover

Build quality in the bottom 30% of 65% boards under $50.

If you want

  • Bluetooth, 2.4 GHz, and USB-C wired connectivity.
  • 470g weight and vendor-described detachable portable strap.
  • Hot-swap support, with the vendor specifying compatibility with 3-pin and 5-pin switches.

Get the

Redragon NOVA K709

Sound dampening

Build quality in the top 40% of 65% boards under $50.

If you want

  • Gasket mount, with the vendor describing a cushioned typing feel.
  • Three-layer noise dampening includes 3.5mm PO foam, IXPE switch foam, and bottom socket foam.
  • Hot-swap support and vendor-described software for modes, effects, and macros.

Bottom line

Pick the CASTOR K631 Pro if wireless flexibility, lower weight, or its detachable strap matters for moving between desks. Choose the NOVA K709 if you prefer a wired keyboard with a gasket mount and specified foam layers for noise dampening. Both offer hot-swap support and a compact layout, so the central decision is portability versus the NOVA's typing-focused construction.

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.

Redragon CASTOR K631 Pro

Redragon NOVA K709

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Wired

    Wireless for several devices and wired for lower latency

  • Mount style

    Bottom Mount

    Gasket Mount

  • Weight

    470 g

    820 g

    Heavier boards stay planted and lighter ones travel

  • Sound dampening

    No

    Yes

  • N-key rollover

    Yes

    No

KeebFinder scores

How we score
  • Redragon CASTOR K631 Pro
  • Redragon NOVA K709
Performance
71
60
Build quality
56
68
Productivity
54
66
Customizability
58
63
Portability
84
72

What they share

  • Layout size: 65%
  • Hot-swappable
  • Case material: Plastic
  • Switch options: Linear
  • Keycaps: ABS
See every spec side by side

Best for

What will you mostly use it for?

The CASTOR K631 Pro stands out for gaming flexibility and travel, mainly because it can operate wirelessly and weighs less. The NOVA K709 is a stronger fit for buyers prioritizing a cushioned, dampened typing experience. Programming and modding are close calls, since both provide compact layouts and hot-swap support, with different secondary strengths. For content creation, the CASTOR's multiple connection modes give it an edge, while both vendor descriptions mention macro support.

For gaming

Pick the Redragon CASTOR K631 Pro

  • The CASTOR K631 Pro offers wired, Bluetooth, and 2.4 GHz connection options; the NOVA K709 is wired only.
  • Both have linear switches, RGB, and a 65% layout with dedicated arrow keys.
  • The CASTOR vendor description identifies N-key rollover and describes the keyboard as dedicated for FPS gaming.

Full specs

Redragon CASTOR K631 Pro vs NOVA K709 specs

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

7 of 18 specs differ

Redragon CASTOR K631 Pro

Redragon NOVA K709

Typing & switches

Switch options

Linear
Linear

Hot-swappable

Yes
Yes

Mount style

Bottom Mount
Gasket Mount

Sound dampening

No
Yes

Layout

Layout size

65%
65%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

None
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Wired

Battery

1,600 mAh
Wired only

USB-C

Yes
Yes

Build & materials

Case material

Plastic
Plastic

Keycaps

ABS
ABS

Weight

470 g
820 g

Dimensions

40 x 309 x 104 mm
40 x 336 x 40 mm

Backlight

RGB
RGB

Firmware & software

N-key rollover

Yes
No

Extras

Released

2026
2024

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

Redragon CASTOR K631 Pro vs NOVA K709: your questions

Yes. Its listed connections are Bluetooth, 2.4 GHz, and wired USB-C, and Redragon describes it as a three-mode keyboard.

No, its listed connectivity is wired only. Redragon describes it as a wired 68-key keyboard with USB-C connectivity.

The CASTOR K631 Pro weighs 470g, while the NOVA K709 weighs 820g. The CASTOR is also described by Redragon as having a detachable portable strap.

Yes, both are listed as hot-swappable. Redragon says the CASTOR supports 3-pin and 5-pin switches, while its NOVA description highlights a hot-swap socket.

The NOVA K709 has a gasket mount. Redragon says its gasket structure is intended to add flexibility and reduce noise.

The NOVA K709 has explicitly described noise-dampening layers: 3.5mm PO foam, IXPE switch foam, and bottom socket foam, alongside a silicone gasket. The CASTOR vendor describes its Dragon Chant linear switches as quiet but does not list those foam layers.

Yes. Redragon lists dedicated arrow keys for both the CASTOR K631 Pro and the NOVA K709.

Both have linear switches, RGB, and a compact 65% layout. The CASTOR adds Bluetooth and 2.4 GHz options, while Redragon describes the NOVA's 68-key layout as designed for FPS gaming and mouse space.

Redragon describes software support for macros, keybindings, and shortcuts on both keyboards. The CASTOR vendor also mentions designing custom modes and effects.

The vendor lists a NOVA K709 keyboard, detachable USB Type-C cable, keycap and switch puller, four spare switches, user manual, and sticker. The listing also specifies ABS keycaps.

Redragon lists the keyboard, user manual, keycap and switch puller, USB-A/C cable, and sticker in the package. The vendor describes this as the detachable-strap version, but the package list does not separately specify the strap.

The CASTOR K631 Pro is the more travel-oriented option based on its 470g weight, Bluetooth and 2.4 GHz connectivity, and vendor-described detachable strap. The NOVA K709 weighs 820g and is wired only.

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