Dell Latitude 7390 Owner's Manual

Port and connector specifications

Table 1. Temperature specificationsTemperature
Feature	Specifications
Audio	Four-channel high definition audio Microphone-in, stereo headphones, and headset combo connectorRealtek ALC3246 ControllerStereo conversion: 24-bit (analog-to-digital and digital-to-analog)Internal interface - high-definition audio codecExternal interface - microphone-in and stereo headphones/speakers universal connector Speakers: Power: 2X2 Wrms Internal speaker amplifier: Two watts per channel Internal microphone: Digital microphone (dual microphone with camera) No volume control buttons Support hot-key keyboard button
Network adapter	One RJ-45 connector
USB	Two Type-C USB 3.1 Gen 1 DisplayPort (optional Thunderbolt)Two USB 3.1 Gen 1 ports (one PowerShare capable
Memory card reader	MicroSD 4.0 card reader and One 3042, One 2280 M.2 slot
Micro Subscriber Identity Module (SIM) card	External tray tied to WWAN hinge up
Docking port	Dell Business Dock WD15 (optional)Dell Business Thunderbolt Dock TB16 (optional) Noble Wedge Lock slot External USB Type-C Doc
Express Card	None
AC adapter	E5 65 W E5 65 W rug (Only for India) E5 90 W E4 65 W HF (BFR/PVC Free) Power Companion 45 W (Dura Ace) Hybrid Power Bank and adapter (45 W) (12 inches only, not 14/15) (No express charge)
Smart card reader	One (optional)
Video	HDMI 1.4