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Home > SM3 Slim Mechanical Backlit Keyboard | Bluetooth – Satechi
4.6
Rated 4.6 out of 5 stars
134 Reviews

SM3 Slim Mechanical Backlit Bluetooth Keyboard

$119.99

Color - Light

  • Full-size 108-key layout with numeric keypad for precise daily input
  • Low-profile brown mechanical switches deliver quiet, tactile typing
  • Four-device connectivity supports seamless Mac and Windows switching
  • Adjustable backlighting with 14 patterns in a slim aluminum design
LEARN MORE

Popular Add-On:

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2 Year Warranty
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Dimensions & Weight

  • Length: 17.3 in. / 42.9 cm
  • Width: 4.90 in. / 12.3 cm
  • Height: 0.94 in. / 2.4 cm
  • Weight: 22.72 oz / 644.1 g

SKU / UPC

  • ST-KSM3LT-EN (Light) / 810086361939
  • ST-KSM3DK-EN (Dark) / 810086361946

Technical Specifications

  • Bluetooth Version: 5.0
  • Bluetooth Connectivity: Connect with up to 2 separate devices
  • 2.4Ghz Connectivity: Connect to 1 device via 2.4Ghz USB-A Receiver
  • Wired Connectivity: Connect to 1 device via USB-C Cable
  • Port Type: USB-C (Charging and Wired Mode)
  • Switch Type: Tactile Low-Profile Brown Switches

MacBook

  • MacBook Pro 16-inch (2019 - 2024)
  • MacBook Pro 14-inch (2021 - 2025)
  • MacBook Pro 13-inch (2016 - 2023)
  • MacBook Pro 15-inch (2016 - 2019)
  • MacBook Air 15-inch (2022 - 2025)
  • MacBook Air 13-inch (2018 - 2025)

Mac/iMac

  • iMac 24-inch (2021 - 2024)
  • iMac 21.5-inch (2017 - 2021)
  • iMac 27-inch (2017 – 2020)
  • iMac Pro (2017)
  • Mac mini (2018 - 2024)
  • Mac Studio (2022 - 2025)

iPad

  • iPad Pro 12.9-inch (2021- 2025)
  • iPad Pro 11-inch (2018 - 2025)
  • iPad Air (2020 - 2025)
  • iPad (2022 - 2025)
  • iPad mini (2021 - 2024)

iPhone

  • iPhone 12-17 Series (Mini, Plus, Pro, Pro Max, Air)
  • iPhone 16e
  • iPhone 11 Series (Pro, Pro Max)
  • iPhone X/ XR/ XS/ XS Max

Windows

  • Microsoft Surface Pro 4/5/6/7/8/9
  • Microsoft Surface Laptop Studio
  • Lenovo ThinkPad X13 Gen 2
  • Lenovo X1 Gen 1 Carbon
  • Lenovo Yoga 720-13IKB
  • Lenovo Legion S7 15ACH6
  • Dell XPS 13 9315
  • HP Spectre & other USB-C Devices

* Not recommended for 2011 & older Mac devices.

What's In The Box

  • SM3 Slim Mechanical Backlit Bluetooth Keyboard
  • Windows Keycaps (Windows keys, Left Alt key, Right Alt key)
  • 2.4GHz USB Receiver (attached to the bottom of the keyboard)
  • 1.2m USB-C to USB-C Cable
  • User Manual

Quick Guide

Frequently Asked Questions

For California Residents

Next-Gen Technology

SM3 Slim Mechanical Backlit Bluetooth Keyboard

Your Desk's New MVP

    Two hands typing on a SM3 Slim Mechanical Backlit Bluetooth Keyboard, showing full sized layout and backlight.

    Design That Delivers

    The Satechi SM3 Slim Mechanical Backlit Bluetooth Keyboard boasts a full numeric keypad, making it the perfect choice for business and office professionals whose tasks require extensive numerical input. Its sleek, minimalist design features an aluminum enclosure, adjustable feet, and removable keycaps.

    A SM3 Slim Mechanical Backlit Bluetooth Keyboard used in a modern desk setup, showcasing its abilty to type on multiple devices like an iPad, iPhone, MacBook, and iMac.

    Smarter, Faster Connections

    Effortlessly power your workflow by connecting up to four devices at once, and instantly switch between them with the versatility of dual Bluetooth 5.0 channels, a 2.4 GHz USB receiver, and a reliable wired connection.

Transform the Way You Work and Play

    Two hands typing on a SM3 Slim Mechanical Backlit Bluetooth Keyboard, showing the backlight patterns.

    Light Up Your Workflow

    The SM3 Slim Mechanical Backlit Bluetooth Keyboard comes with a white backlight that supports 14 different patterns with three brightness levels, and four LED speeds.

    Person typing on a SM3 Slim Mechanical Backlit Bluetooth Keyboard with adjustable feet for optimum efficiency and comfort.

    Adjustable Height

    Its adjustable feet allow users to tailor the angle of the keyboard for ultimate comfort and efficiency, reducing strain on the wrists and hands.

    A flatlay of the SM3 Slim Mechanical Backlit Bluetooth Keyboard, iPhone, iPad, and tablet, showcasing the SM3's compatibility with macOS, iPadOS, iOS, and Windows OS.

    One Keyboard, Endless Choices

    The SM3 Slim Mechanical Backlit Bluetooth Keyboard supports multiple operating systems including macOS, iPadOS, iOS, and Windows OS. It comes with specific OS keys (O and P) that allow users to quickly and conveniently transition between platforms.

    The SM3 Slim Mechanical Backlit Bluetooth Keyboard charging on a desk, showcasing its a rechargeable battery by the USB-C port that can be used for both charging and wired mode.

    Recharge Anytime

    The SM3 Slim Mechanical Backlit Bluetooth Keyboard features a rechargeable 2500mAh battery with a future-proof USB-C port that can be used for both charging and wired mode.

Everything You Need in One Keyboard

    SM3 Slim Mechanical Backlit Bluetooth Keyboard. Text: Premium Made Easy ; rechargeable battery, 14 backlight patterns, numeric keypad, adjustable height. * Mac and Windows Compatibility
    SM3 Slim Mechanical Backlit Bluetooth Keyboard, Text: Connect 4 devices at once, bluetooth up to 2 devices, USB reciever 2.4 GHz, wired mode 1.2M cable.
    Swappable keys next to the SM3 Slim Mechanical Backlit Bluetooth Keyboard, revealing the low-profile brown switches. Includes four Windows keycaps.
    A close up of the SM3 Slim Mechanical Backlit Bluetooth Keyboard. Text: Full size mechanical keyboard and aluminum frame. Length: 16.9in/42.9cm Width: 4.7in/11.9cm Height: 0.6in/1.5cm H (with Smaller foot): 0.83in/2.1cm H (with Larger foot): 1.02in/2.6cm

FAQ

Yes! We have plans for keyboards with different configuration styles.

The SM3 keyboard can be used with both Mac and Windows computers.



The keyboard is set up for Mac use by default. The key labels match Mac keys. To support Windows users, the box includes extra keycaps:

2 Windows (WIN) keys
2 Alt keys
You may replace the Mac keycaps with these if you prefer a Windows-style layout.

The keyboard starts in Mac mode by default. You can switch modes based on the computer you are using.

O key = Mac mode
P key = Windows mode
Steps:

Press and hold the FN key.
While holding FN, press O for Mac or P for Windows.
Release the keys.
The selected key will briefly flash to confirm the change.

When the flashing stops, the keyboard is set to the selected mode.

If the ESC key is flashing, the keyboard is set so the F1–F12 keys work as standard function keys instead of media shortcuts.

This setting is controlled using the FN + ESC shortcut.

What this means:

F1–F12 work as normal function keys
Media controls (volume, brightness, play/pause) require holding the FN key
To switch back:

Press FN + ESC again.
The ESC key will stop flashing.
When the ESC key stops flashing, the media shortcut keys work normally without holding FN.

No. Our keyboards include a built-in power-saving feature:

Backlight decreases to Level 1 after 1 minute of inactivity Backlight turns off after 3 minutes of inactivity Keyboard enters sleep mode after 30 minutes of inactivity

This feature cannot be turned off as it is embedded in the keyboard’s firmware.

Learn More
4.6
Rated 4.6 out of 5 stars
Based on 134 reviews
Slide 1 selected
Total 5 star reviews: 99 Total 4 star reviews: 22 Total 3 star reviews: 8 Total 2 star reviews: 5 Total 1 star reviews: 0
134 reviews
  • Jamail
    2/25/26
    Rated 5 out of 5 stars
    5 Stars

    Love the timely delivery

    Was this helpful?
  • Hemal P.
    Verified Buyer
    2/21/26
    Rated 5 out of 5 stars
    SM3 Slim

    Works and looks great

    Was this helpful?
  • Kenneth O.
    Verified Buyer
    2/14/26
    Rated 5 out of 5 stars
    Best Keyboard

    I love the SM3 Slim Bluetooth Keyboard. It is just great. I was so tired of typing with my one finder on the iPad, and now that I have this wonderful keyboard I couldn’t be happier.

    I can and will highly recommend this amazing keyboard and think those that want a slim keyboard to go purchase them ones, you will not be sorry.

    Was this helpful?
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