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ELECOM DEFT Trackball Mouse, Wired, Finger Control, 8-Button Function with Smooth Tracking, Ergonomic Design, Windows11, macOS (M-DT2URBK)
エレコム(ELECOM)

ELECOM DEFT Trackball Mouse

Bottom line: The ELECOM DEFT Trackball Mouse: Finger-operated ball keeps your wrist stationary during long editing sessions; main trade-off: wired only - no Bluetooth or 2.4GHz wireless option.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Finger-operated ball keeps your wrist stationary during long editing sessions
  • ✓ 8 physical buttons including a tilt wheel for horizontal scroll
  • ✓ DPI button toggles 750 and 1500 counts on the fly
  • ✓ Left/right switches rated beyond 10 million clicks
  • ✓ Ball pops out through a base hole for quick cleaning

Cons

  • ✗ Wired only - no Bluetooth or 2.4GHz wireless option
  • ✗ 1500 DPI ceiling is low next to modern gaming mice
  • ✗ Button remapping needs ELECOM Mouse Assistant, Windows-side software
  • ✗ Horizontal scroll does not work under Windows RT8.1

Manufacturer description

The ELECOM DEFT M-DT2URBK is a wired finger-operated trackball built for people who want the cursor to move without the mouse moving. Its shell is shaped around six muscle and skeletal structures of the hand, with the design emphasis on how your fingers fold over the ball, so your wrist stays planted while your fingertips do the work. The EX-G series optical tracking system reads the ball directly for precise cursor placement, and a DPI button switches between 750 and 1500 counts when you need finer control for photo edits or faster sweeps across a multi-monitor desktop. Eight physical…

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SpecPicks Verdict

SpecPicks scored ELECOM DEFT Trackball Mouse using a rating × review-volume × price-fit model applied to published specs and reviews across the keyboards & mice category. エレコム(ELECOM)'s keyboards & mice lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for keyboards & mice of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Is the ELECOM DEFT finger-operated or thumb-operated?

Finger-operated. The ball sits under your index and middle fingers rather than your thumb, and the shell is contoured around the folding motion of the hand.

What DPI settings does the M-DT2URBK support?

Two: 750 DPI (LOW) and 1500 DPI (HIGH), switched with a dedicated DPI button on the device.

Does it work on a Mac?

Yes, macOS 10.10 or later. It also supports Windows 8, 10, and 11. Note that ELECOM Mouse Assistant, which handles button remapping, is the Windows-side utility.

Can I clean the trackball?

Yes. The ball rests on bearings and pops out by pushing it up through the hole in the bottom of the housing, so you can wipe the ball and the bearing seats.

Is this mouse wireless?

No, the DEFT M-DT2URBK is wired only. If you need a cable-free trackball, look at ELECOM's wireless models instead.

Key Features

  • ✅《Ergonomic Unique Design》The mouse design is based on 6 different muscle and skeletal structures of the hands giving special emphasis to the folding actions of the hands to provide "a new level of hand comfort"
  • ✅《Optical Tracking Technology》The ELECOM "EX-G series" trackball provides precise cursor movement for superior accuracy so you can get where you want on the screen quickly with less hand movement, improving productivity and efficiency. It is very easy to move in any direction.
  • ✅《Functional 8 Buttons》It comes with 8 physical buttons on the device and the two extra buttons are the scrollwheel tilting that allow horizontal scroll. The high durability left and right button switches passed the click testing of more than 10 Million clicks. ELECOM Mouse Assistant software can be easy to customize button functions.
  • ✅《DPI Cursor》Designed with a high-performance gaming optics system sensor and lens. The DPI button can easily change between 500(LOW) and 1500(HIGH) DPI, making the movements of your cursor faster or slower. The ball is held in place by the ball bearings, but can easily be popped out of the device, by pushing it through the hole in the bottom and it can be easily cleaned.
  • ✅《Product Details》System requirements: Windows 8, Windows 10, Windows 11 or later (Horizontal scrolling function is not working in Windows RT8.1), macOS 10.10 or later, Size: W3.7"(94.7mm) X L4.9"(124.4mm) X H1.9"(47.9mm), Weight: 4oz, DPI: 750/1500 count (switchable), Connectivity: wired

Full Specifications

Brandエレコム(ELECOM)
ColorBlack / Black ball
Range6.0 feet
ThemeOffice, Home, Telework, Cafe
Weight4oz
Model NameELECOM
Style NameWired
Unit Count1 Count
Model NumberM-DT2URBK
Power SourceBattery Powered
CompatibilityMac
Item Type NameELECOM Wired Finger-operated Trackball Mouse EX-G series 8-Button Function with Smooth Tracking, Precision Optical Gaming Sensor (M-DT2URBK)
Button Quantity8
Connection TypeWired
Mfr Part NumberM-DT2URBK
Special FeatureFinger-Operated, Programmable Buttons
Antenna LocationBusiness, Home
Hand OrientationRight
Hardware PlatformMac, PC
Compatible DevicesPersonal Computer
Full listing titleELECOM DEFT Trackball Mouse, Wired, Finger Control, 8-Button Function with Smooth Tracking, Ergonomic Design, Windows11, macOS (M-DT2URBK)

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ELECOM DEFT Trackball Mouse, Wired, Finger Control, 8-Button Function with Smooth Tracking, Ergonomic Design, Windows11, macOS (M-DT2URBK) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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ELECOM DEFT Trackball Mouse, Wired, Finger Control, 8-Button Function with Smooth Tracking, Ergonomic Design, Windows11, macOS (M-DT2URBK)
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