Monoprice 1 to 3 Type B 16 Pin to 3x 8 Pin 12VHPWR 600W 90 Degree Right Angle Cable

16 Pin to 3x 8 Pin Adapter

This Monoprice cable converts three 8 pin PCIe connectors from a power supply into a single 16 pin 12VHPWR connector for compatible RTX 40 series graphics cards. It is built for owners of RTX 4070 Ti 4080 or 4090 models who need to power the 12+4 pin socket using existing PSU cables. The Type B right angle design suits GPUs where the port faces the cooler side. Buyers whose power supply lacks three free 8 pin ports cannot use this adapter.

16AWG Tinned Copper Construction

The cable uses 16 AWG tinned copper wire with alloy copper plug terminals rated for up to 600W delivery under the PCIe 5.0 12VHPWR specification. A black sleeved jacket covers the 15 cm length giving a clean look inside the case. The 90 degree right angle male connector reduces strain on the GPU socket and helps route the cable neatly toward the side panel. All three 8 pin plugs must be seated simultaneously; the adapter will not function if fewer than three are connected.

Passive Thermals and Power Delivery

As a passive wire assembly the adapter adds no active cooling or noise to the system. Its 16 AWG conductors and tinned terminals are specified to handle the full 600W load without excessive voltage drop or heat buildup under normal operation. Proper seating of all three 8 pin connectors and the 16 pin GPU plug ensures stable current flow. The right angle geometry also minimises sharp bends that could degrade insulation over time.