GT-CTS21.5

Not for single users. The value shows up with two people at the screen: one drags a map while another zooms, or in education two students solve a problem together. 10 points means no "ghost drop" when palms + fingers pile on. For solo kiosk use, 2–5 points is plenty — we can cap the point count in firmware to reduce CPU load on weak hosts.

Correct — touch only works once the OS loads the HID stack; BIOS/UEFI pre-boot won't respond, same as any USB HID panel. For meeting rooms that's fine because nobody touches the BIOS. If you need pre-OS tap (kiosk recovery menu), add a physical button or keep a mouse in the loop; the panel itself stays zero-driver inside Windows/Android/Linux.

The weak point is always the corner, not the face. We ship with corner-impact foam and a rigid filler frame, not just bubble wrap. For field-swappable units, carry the panel by the edges with both hands, never one corner. If your logistics route is rough (cross-border, last-mile courier), ask for our reinforced crate option with edge-channel bracing.

For ad playback, 5 ms vs 10 ms is invisible — ads don't need fast taps. Where 5 ms pays off is the interactive ad moment: "tap to claim coupon", QR-game overlays, photo booth style prompts. Those need snappy response so users don't double-tap. So 5 ms is real, just not for passive video — it's for the 10-second interactive window.

Gesture feel comes from controller firmware + baseline, not the glass. We freeze the firmware build and calibration recipe at MP, then every batch is verified against a reference jig for point-count, jitter and edge accuracy. Two stores, six months apart, get the same swipe/zoom behavior — as long as you don't mix controller vendors mid-run (we lock ILITEK/EETI/Weida per your BOM).