Genesis‘s Krypton 660 arrives as a tidy answer to a very simple question: Can you get modern ultralight mouse features without breaking the bank? The short answer is yes — the Genesis Krypton 660 nails the basic ultralight formula (very low mass, flexible cable, solid sensor) and pairs it with approachable software and RGB flair. This isn’t a high-end boutique mouse, but for the price, it delivers unusually good value for players who want speed and comfort without a premium price tag.
What it is — the essentials
The Genesis Krypton 660 is a wired, right-handed gaming mouse that weighs in at approximately 49 g, uses a PixArt PAW3327 optical sensor, and connects via a flexible paracord-style cable. It offers up to 12,000 DPI, RGB lighting, six programmable buttons and a 1000 Hz polling rate — the kind of spec list you’d expect from a modern budget ultralight. Those raw specs are paired with downloadable Genesis software for button remapping, DPI steps and lighting control.
Design & build
Physically, the Genesis Krypton 660 follows the current ultralight template: a clean, slightly scooped shell aimed at claw and palm grips with cutouts on the underside to shave weight. The shell feels rigid for its weight — not fragile — and the thumb area is comfortable for medium-to-large hands. The paracord cable is flexible enough to reduce drag and gives the mouse an almost wireless-like feel on the desk. The RGB implementation is tasteful, not aggressive, and can be turned down or customised in the software. Official photos and product pages show a solid build for its price bracket.
Sensor, performance & latency
Under the hood, the Genesis Krypton 660 uses the PixArt PAW3327 (listed by Genesis), which provides accurate tracking at high speeds and supports the advertised DPI range. In practice, this sensor is more than capable for everyday gaming: tracking is precise in both slow flicks and fast swipes, with no obvious acceleration artefacts for normal play. The 1000 Hz polling rate and low weight make it feel snappy in fast-paced shooters — lifts and repositions are easier and less fatiguing than standard, heavier mice. For the price segment, the sensor and responsiveness punch above what you might expect.
Software & customisation
Genesis provides a downloadable package specifically for the Genesis Krypton 660 (a named ZIP on the support page). The software handles DPI steps, macro assignment, button reprogramming and RGB control. It’s not as fully featured as premium vendor suites, but it’s functional and straightforward: install, set DPI stages, map the side buttons, and save profiles to the mouse or software. The manual and support downloads confirm the software availability and basic install flow. If you rely on deep macro chains or cloud profile syncing, this suite won’t match flagship offerings — but for most users, it covers the essentials.
Everyday use — gaming and productivity
Because of its 49 g weight and flexible cable, the Genesis Krypton 660 feels especially good for games that reward quick wrist movement: competitive shooters, fast arena shooters and esports titles benefit from the lightweight design. It also works well for long sessions because fatigue is noticeably reduced compared with heavier mice. The switches are responsive with a satisfying click, the scroll wheel is decent, and the button placement is unintrusive. For productivity, the six programmable buttons are handy for shortcuts — nothing groundbreaking, but useful.
Who should buy this?
Buy the Genesis Krypton 660 if you want an ultralight wired mouse with modern specs at a budget price. It’s ideal for players moving from standard 80–100 g mice to something lighter, or for anyone who wants a fast-feeling mouse without paying premium prices. If you demand absolute top-tier switches, wireless connectivity, or the most advanced sensor telemetry available, look at higher-end models — but they’ll cost significantly more.
Minor gripes
Two caveats: the software is functional but basic, and a handful of cheaper mice beat the Krypton on absolute ergonomics for very small hands. Also, while the PAW3327 is perfectly capable, it’s not the same flagship sensor some premium mice use — but in real-world play, you may never miss that difference unless you’re chasing millisecond perfection or doing scientific sensor testing.
Verdict
The Genesis Krypton 660 is one of the best value ultralight mice you can buy. It nails the essentials — very low weight, flexible cable, accurate sensor and usable software — and packages them in an affordable, polished product. For gamers who want faster flicks, lower fatigue and straightforward customisation without an expensive price tag, this is a strong pick.
Genesis Krypton 660 First Look Video
Good points
- Very light at ~49 g — excellent for fast flicks and reduced fatigue.
- PixArt PAW3327 sensor delivers accurate tracking for most gamers.
- Flexible paracord cable reduces drag and feels almost wireless.
- RGB and six programmable buttons for basic customisation.
- Downloadable software available for DPI, macros and lighting.
Bad points
- Software is functional but not as advanced as premium vendor suites.
- Not the absolute top-tier sensor or switches used by premium mice.
- Ergonomics may not suit very small hands as well as some alternatives.
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The product was provided to us for the express purpose of reviewing.
The review was written by me and edited by my partner.
