In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. The PB-48 is a professional Patch Bay Systems featuring a full 48 patch points. The PB-48 is housed in a sturdy, heavy gauge steel single rack space chassis. Each unit is built with high quality jacks that will provide many years of reliable service. Each unit may be easily customized to allow any vertical patch pair to be half-normalled, non-normalled, or multied.