Adjustable backrest for pilot and copilot
Sun glare shields and canopy lining
Instrument lighting
Overhead cabin light
Baggage extension with separate compartment
1x USB port each for pilot & copilot
Dual headset plugs (LEMO connector + standard jack connector for pilot & copilot, for passengers LEMO only)
Exterior equipment – standard
Heated pitot tube

High-gloss multi layer paint
Variety of exterior striping (Standard striping)
Registration markings
Electrically operated flap system
Wheel fairings on main and nose landing gear
Landing and taxi lights with LED technology
Position and strobe lights with LED technology
Safety concept
Composite cabin and safety seats (up to 26g)
„FAILSAFE” airframe and wing design
Lightning protection system
3-point safety belts automatic (all seats)
Other equipment – standard
147 lt (39 US gal) long range fuel tank
Noise reduction muffler

Pitot cover
Tow bar
Tool kit
First aid kit, fire extinguisher, egress hammer, gust lock

Original source:
https://avpay.aero/company/egmont-group/product/diamond-da40-ng-position-for-sale/