Solderable Prototyping Board SB404 Solderable PC BreadBoard, 4 Mounting Holes, Matches or .The SB404 Solderable PC BreadBoard enables you to transfer your circuit and wires from a plug-in breadboard without recutting wires or changing your layout. The SB404 has the same pattern as a standard 400 connection point BB400 solderless plug-in breadboard. It has a standard 5-hole strip for each IC pin, just like solderless breadboards plus 4 power rails. However, it has the advantage that soldered joints provide a more reliable long-term connection than solderless contacts. The SB404 has four power rails like solderless breadboards, plus two bonus rails for power or signals. There are bonus two-hole pads along the centerline allowing DIL (dual in-line) headers to be used. A top side silkscreen helps to position components. Four mounting holes allow your projects to be secured. BPS prototyping boards use high-quality FR4 glass epoxy PCBs for long life. An anti-tarnish coating protects the copper for a long shelf-life and provides easy soldering. BPS boards are lead-free and RoHS compatible.--Features:-- •Same pattern as a standard 400 connection point solderless plug-in breadboard •Single-sided high-quality FR4 glass-epoxy circuit board. Top side silkscreen •1oz/ft² copper with an anti-tarnish coating for easy soldering. Lead free and RoHS compatible •540 holes, 0.042" holes are drilled on 0.1" (2.54mm) centers. Four 0.125" mounting holes •Dimensions: 3.75 x 1.85in (95.3 x 47.0mm), 1/16" thick (1.6mm)