Redragon ANTONIUM K745 HE vs K721
Choose the K745 HE for its full-size layout and five-layer dampening, or the lighter, compact K721 to save desk space.
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Which one should you get?
Get the
Redragon ANTONIUM K745 HE
Sound dampening
- Full-size, 108-key layout.
- Five-layer noise dampening, including PO foam, IXPE switch foam, PET sound pad, bottom socket foam, and silicone bottom pad.
- PBT keycaps and a detachable USB-C cable are listed by Redragon.
- Magnetic switches only. Standard MX switches will not fit.
Get the
Redragon K721
N-key rollover
Build quality in the bottom 40% of 75% boards under $100.
- 75% layout with 75 keys and a narrower 335 mm width.
- Lighter at 803 g.
- Vendor description specifies adjustable actuation from 0.01 mm to 3.5 mm with 0.1 mm precision.
- Magnetic switches only. Standard MX switches will not fit.
Pick the K745 HE if you want a full-size keyboard, PBT keycaps, and Redragon's detailed five-layer dampening setup. Choose the K721 if a smaller footprint and lower weight matter more, or if its vendor-described adjustable actuation and N-Key Rollover appeal for gaming. Both are wired Hall Effect keyboards with Rapid Trigger and 8000 Hz polling, and neither accepts standard MX switches.
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 ANTONIUM K745 HE
Redragon K721
Switch options
Magnetic
Linear, Magnetic
Weight
1,382 g
803 g
Heavier boards stay planted and lighter ones travel
Sound dampening
Yes
No
N-key rollover
No
Yes
Released
2026
2025
- Redragon ANTONIUM K745 HE
- Redragon K721
- Performance
- 9298
- Build quality
- 6159
- Productivity
- 5652
- Customizability
- 5356
- Portability
- 4458
- Hall effect (magnetic)
- Rapid trigger
- Connection: Wired
- Hot-swappable
- Max polling rate: 8,000 Hz
- Mount style: Gasket Mount
What will you mostly use it for?
The K721 edges out the K745 HE for gaming on the strength of its specifically described adjustable actuation and N-Key Rollover, while both share core Hall Effect features. The K745 HE is the more suitable pick when a full-size layout or named sound-dampening layers matter. For travel, the K721's lower weight and narrower body make the choice straightforward. Modding is a draw on the available switch and hot-swap details.
Pick the Redragon K721
- Both list Hall Effect switches, Rapid Trigger, and 8000 Hz polling.
- The K721 vendor description specifies adjustable actuation from 0.01 mm to 3.5 mm with 0.1 mm precision.
- The K721 vendor description also lists N-Key Rollover.
Redragon ANTONIUM K745 HE vs K721 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
7 of 19 specs differ
Redragon ANTONIUM K745 HE
Redragon K721
Switch options
Hall effect (magnetic)
Rapid trigger
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Display
Connection
Max polling rate
USB-C
Keycaps
Weight
Dimensions
Backlight
N-key rollover
Released
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Redragon ANTONIUM K745 HE vs K721: your questions
The K745 HE is a full-size 108-key keyboard, while the K721 has a 75% layout with 75 keys. The K745 HE also lists PBT keycaps and five-layer noise dampening, while the K721 is smaller and lighter.
Both list Hall Effect switches, Rapid Trigger, and an 8000 Hz polling rate. The K721 vendor description adds adjustable actuation from 0.01 mm to 3.5 mm and N-Key Rollover, giving gaming-focused buyers more specifically documented features to consider.
Yes, Rapid Trigger is listed for both keyboards. Each also uses Hall Effect magnetic switches and has an 8000 Hz polling rate listed in its specifications.
Both keyboards are listed as hot-swappable. Their compatibility rules specify magnetic switches only, so standard MX switches will not fit.
No. Both keyboards specify magnetic-only switch sockets, and standard MX switches will not fit.
The K721 is the smaller and lighter model, measuring 335 mm wide and weighing 803 g. The K745 HE measures 455 mm wide and weighs 1382 g.
Redragon describes the K745 HE as a 108-key full-size keyboard, making it the full-size option in this comparison. The K721 is a 75% keyboard with 75 keys.
Redragon lists five noise-dampening layers for the K745 HE: PO foam, IXPE switch foam, a PET sound pad, bottom socket foam, and a silicone bottom pad. The K721 is described as gasket-mounted, but its product description does not detail comparable foam layers.
Yes, both are listed with an 8000 Hz polling rate. Redragon also describes the K745 HE as supporting native 8,000 Hz polling, while the K721 vendor listing gives the same maximum rate.
The K745 HE specifications list USB-C, and Redragon describes its cable as detachable Type-C. The K721 is listed as a wired USB keyboard, but its connector type is not identified in the product details.
The K721 is the more portable option based on its listed dimensions and weight: 335 mm wide and 803 g. The K745 HE is 455 mm wide and weighs 1382 g, and both keyboards are wired.
No, both are listed as wired-only keyboards. The K745 HE has a detachable USB-C cable described by Redragon, while the K721 is listed as using a wired USB connection.
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