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XLR And Speakon D-Size Hole Blanking Plate
A 26 x 31 x 4 mm blanking plate that closes an unused D-size connector cutout (24 mm round hole, M3 holes on a 19 x 24 mm pattern, as used by Neutrik XLR, Speakon and etherCON) in a rack panel, stage box or amp chassis. A 23.5 mm locating ring centres it in the cutout, and the four 3.4 mm M3 clearance holes line up with the screw holes already in the panel.
Vented PCI Slot Blanking Plate
This printed cover replaces a lost or bent PC case expansion-slot cover. It uses the standard full-height ATX/PCI bracket size, 120 mm long and 18.4 mm wide, with a tapered 10 mm bottom tongue and an 11.4 mm top foot. The foot has a U-notch that slips under a loosened 6-32 or M3 case screw, so you don't need to remove the screw. Ten vent slots and two stiffening ribs on the inside face keep the 1.2 mm plate flat, and they leave the outer face plain so it sits flush against the rear panel.