The GRAM SE Spectrum uses the all-new Tesoro Optical Switch in a sleek, minimalistic keyboard design. The infra-red switch responds twice as fast as traditional mechanical switches and offers advanced dust and spill resistance. Since the Tesoro Optical Switch does not use metal components, like traditional mechanical switches, there is no regular wear and tear from constant contact. This allows for a longer switch lifespan.

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Gram-SpectrumGram SE SpectrumV0219/104key




Gram Spectrum reviews in eTeknix!

“The Tesoro Gram Spectrum is a formidable weapon for those who want a slick and fast keyboard with lightning fast responses. ”


Durandal Ultimate in techporn!

“Build quality is second to none. I have said it earlier: The Durandal Ultimate is built like a tank.”


Excalibur in PC Game Ware!

“There’s no doubt that the Tesoro Excalibur is a good mechanical keyboard and the Kailh based switch (Blue in this case) works well.”


Lobera Spectrum in KitGuru!

” It is clear that Tesoro has been hard at work on perfecting its RGB functionality, which has improved leaps and bounds.”

Experience Tesoro’s Optical Switch Technology

Optimize your game with unparalleled fast movements, zero-lag, and precise actuation via infrared communication.

Optical keys foster durability and longevity

A non-contact signal through optical communication eliminates double typing, delayed response times and defects that come from traditional metal contact. With no oxidation and a particle and spill resistant component, enjoy a longer lifespan.

Anti-particle and spill resistant protection

Liquid resistant coating over the PCB for accident protection for those not-so-lucky moments. The Tesoro Optical Switches are water resistant as they don’t include metal components that may rust.

Total key customization for personalized functionality

Customize your keyboard via Instant Macro Recording, Instant Lighting Recording – both static and dynamic options and unlimited key programming.

Hot swappable switches

Customize up to 4 Tesoro Optical Switches

Some keys may work better with a different switch. If you have a blue switch board, swap up to 4 switches with red switches for a more customized experience and vice versa!

32bit ARM Cortex Processor & 512KB On Board Memory

Experience maximum speed and memory for 100% performance, with zero lag.

Full N-key/6-key rollover options

Ensure no key strike will be missed.

Adjust keyboard angle with built-in kick stand

Position the GRAM SE Spectrum to your comfort level.


  • Featuring Tesoro’s Optical Switch technology
  • Fastest switch response time of 0.1ms
  • Precise actuation for optimized game play; Non-contact signal eliminates double typing
  • Extreme durability with an optical sensor life span of 100k hours
  • Beautiful, solid metal top casing
  • Anti-particle and spill protection
  • Full key customization & Instant Macro and Lighting Recording
  • Hot swappable switches
  • Customize up to 4 switches with included 4 x Tesoro Optical Switches (blue or red), switch puller
  • 6-key and N-key rollover options
  • IP56 Certification: IP56
    *passed test for protection against dust and powerful water jet streams, when keyboard not in operation.


Model numberG11UXL
Switch TypeTesoro Optical switch – Blue and Red options
Keyboard ColourBlack/White
Actuation DistanceBlue: 2.3mm +/- 0.6mm
Red: 2.0mm +/- 0.6mm
Operation ForceBlue: 60g +/- 15g
Red: 45g +/- 15g
Travel DistanceBlue: 4mm +/- 0.4mm
Red: 4mm+/- 0.4mm
Processor32bit ARM Cortex Processor
Optical Sensor Lifespan100,000 hours
MaterialMetal / Plastic
Ultra-polling rate1000 Hz
Key rollover6-key / N-key options
Backlit16.8 million RGB
Lighting EffectsPer key customizable illumination
Special keysProfile Reset, Keyboard Reset, Profile Switch, Multimedia, Color Mode Switch, Rollover Switch, Instant Macro Recording, Instant Lighting Recording, Keyboard Lock, FN Lock, Win Key Lock
Multimedia keys6
Cable1.8 meter detachable braided cable
System RequirementsWindows 7/8/10, PC System with USB Port, Internet connection for the software download
IP56 CertificationIP56 *passed test for protection against dust and powerful water jet streams, when keyboard not in operation
Warranty1 year
Product dimensions (WxHxD)445 x 139 x 32 mm
Package dimensions (WxHxD)475 x 186 x 39 mm
Product Weight (w/ cable)1.2 kg
Product Weight (with packaging)1.5 kg