Question about Logitech MK540 Advanced

What does the Return (Enter) key above the Shift key look like? 1. is it as shown in the photos (i.e. straight, similar to the shift key)? 2. or is it an "ISO/JIS Return key" (See https://deskthority.net/wiki/File:Return_key_--_ISO.svg) (i.e. Higher. Occupies the space of two key rows, as a kind of upside-down L)? Many thanks