This bundle includes the EK-Pro Manifold 2 CPU 8 GPU and a 10-pack of EK-Quantum Torque Plugs w/Covers. The EK-Pro Manifold is a purpose-made coolant delivery system for multiple water blocks in workstation systems. It offers perfect coolant distribution by using multiple industry-standard G1/4" In and Out ports. The EK-Pro Manifold 2CPU 8GPU can support two CPU and eight GPU water blocks in parallel or semi-parallel setups. For best results, EK recommends using EK-Pro GPU Quick Disconnect and EK-Pro CPU Quick Disconnect Kits (sold separately) in combination with the EK-Pro Manifold. The manifold system, combined with the QDC kits, enables users to easily add or remove water blocks to the cooling loop without draining the entire loop. This avoids precious downtime for workstations and other professionally used computer setups. It features a full acetal body, stainless steel end caps, and nickel-plated brass plugs. Pre-assembled, out of the box, it can be used in a semi-parallel setup. EK-Quantum Torque Plug w/Cover 10-Pack - Black is a premium Quantum G1/4" plug set of 10 pieces for closing the unused ports on your water cooling equipment. Ideal for when you don?t want G1/4" plugs to be seen. These black ABS covers are in the shape of the EK logo, provide a stylish look, and are easy to align in any direction so that the EK logo is showing in the proper orientation. Plugs are made from nickel-plated CNC machined brass and sealed with quality rubber O-ring. The covers are made of black ABS plastic. Technical data: Threading: G 1/4" Thread length: 4.5mm Enclosed: - EK-Pro Manifold unit - Allen key 6mm (1pc) - Allen key 2,5mm (1pc) - Manifold mounting (1pc) - Screws M4 x 6mm DIN7984 (4pcs) - G1/4 Plugs (7pcs) -?EK-Quantum Torque Plug w/Cover, Black, 10-pack