Deity SPD-HR12V Regulated 12V 4-Pin Push-Power Cable

The SPD-HR12V connects a Hirose-compatible distro to a Hirose-compatible device, with the difference that its output is regulated to a fixed 12 V. A distro fed straight off a battery swings across the pack's whole discharge curve, and equipment that specifies 12 V regulated can misbehave or refuse to start at the top or bottom of that range.

Use it for anything in the bag whose datasheet asks for a regulated rail. Everything else can stay on an unregulated lead.