Send 1 HDMI device to up to 12 HDTV's or other devices. Any 1 : [any number that completely factorizes into 2s and 3s] split is quite easy to functionally accomplish. However, this one also manages to be very compact and look nice - good job on that! Yeah, the problem appears when you want to split into 5s or 7s. Compact Mk5 1-12 Splitter / Blueprints / Satisfactory - Calculator | Gaming Tool/Wiki/Database to empower the players. All trademarks and registered. Is it for quick loading on a train? For these I have this 1:6 Splitter for one sided loading. You could simply use two of those to get 1:12 if necessary somehow. by astroshak » Mon Jan 20, 2020 2:41 pm StarShell. the arangement of the splitters, the bottom of the three whit the input away from the first splitter, the middle with the input inward, and the top with the input outward.