Adesso iMouse T40 - Wireless Programmable Ergonomic Trackball Mouse Number of memory slots___2 4 mm Package width 82

4 mm Package width 82

It's also improved across the board

HP Connect for Microsoft Endpoint Manager HP speaker type HP Dual Speakers HP Support Assistant Yes HP Smart AC Adapter Yes HP front camera HP Webcam Battery Battery technology Lithium-Ion (Li-Ion) Number of battery cells 3 Battery capacity 51 Wh Power AC adapter power 65 W AC adapter frequency 50 - 60 Hz AC adapter input voltage 100 - 240 V Security Password protection Yes Trusted Platform Module (TPM) Yes Password protection type BIOS

the HD710 Pro has an easy to use USB port cover

Adesso iMouse T40 - Wireless Programmable Ergonomic Trackball Mouse Number of memory slots___2 4 mm Package width 82Adesso iMouse T40 Wireless Programmable Ergonomic Trackball Mouse Key Features Device Interface : RF Wireless Number of Buttons : 7 Movement detection technology: Trackball Purpose: Office Overview