Strap-On Desk Leg Cable Spine
A 119 x 60 x 21 mm snap-in cable raceway segment that straps to a desk or sit-stand leg and carries the cable bundle vertically: a 26 mm wide x 16 mm deep channel with lips narrowing the mouth to 18 mm so cables push in and stay put. Mounts with velcro or zip ties through two 18 x 4.4 mm wing slots (fits any leg profile) or two 4.5 mm screw holes (M4 / #8 wood screw, 4.2 mm shank), and each segment lap-joints into the next with a 9 mm tongue and 4 mm locating peg so you stack as many as the leg is tall.
desk cable-management standing-desk raceway