HP 98568A Installation Instruction page 448

HP 35723A HP Touch Bezel
6. Hold HP Touch in front of the monitor. Tilt the top of HP Touch toward
the monitor. Line up the upper edge of HP Touch's side mounting tabs so
that they slip under the retainer clips on the monitor (Figure 10-5).
Figure 10-5.
Aligning HP Touch with monitor
10-6 Adding Miscellaneous Peripherals