This product is either discontinued or we cannot get that from suppliers.
Atdec Systema SQS10B Quad Monitor Spring Arm Desk Mount kit, Three points of articulation, capacity up to 8kg, VESA 75/100mm, Easily tilt, pan, landscape to portrait rotation, recycle steel and aluminum, Green Star, BLACK
The SYSTEMA SQS10B is a four spring arm combination attached to a 100mm post.