7.85 CHF per piece for 3 units
Value HDMI (Typ A) — HDMI (Typ A)
3 m, HDMI
Value HDMI (Typ A) — HDMI (Typ A)
3 m, HDMI
No. HDMI cables are digital, i.e. either all the information (video and sound) comes through or none at all. There are no delays or differences between cheap and more expensive cables (apart from the plug and possibly the tube used in the cable).
Since the picture says 1080p and 3D, it should be able to do HDMI 1.4a (according to Wikipedia). I can confirm that the Audio Return Channel and 1080p works. I have not used it for 4K.
Otherwise, you would probably have to ask Rotronic.