We offer the following replacement laptop keys for your Dell Latitude 3540

Escape key, F1 key, F2 key, F3 key, F4 key, F5 key, F6 key, F7 key, F8 key, F9 key, F10 key, F11 key, F12 key, Mute key, Insert key, PrntScr key, Delete key, Page Up key, Page Down key, Home key, End key, ~` (tilda) key, 1 key, 2 key, 3 key, 4 key, 5 key, 6 key, 7 key, 8 key, 9 key, 0 (zero) key, minus/underscore key, plus/equals key, Backspace key, Num Lock key, Forward slash (number pad) key, Asterisk (number pad) key, Minus (number pad) key, Tab key, Q key, W key, E key, R key, T key, Y key, U key, I key, O key, P key, [{ key, ]} key, backslash/pipeline key, 7 (number pad) key, 8 (number pad) key, 9 (number pad) key, Caps Lock key, A key, S key, D key, F key, G key, H key, J key, K key, L key, ;: (colon/semicolon) key, apostrophe/quotations key, Enter (main keyboard) key, 4 (number pad) key, 5 (number pad) key, 6 (number pad) key, Left Shift key, Z key, X key, C key, V key, B key, N key, M key, , < (comma/less than) key, . > (period/greater than) key, / ? (forward slash/question mark) key, Right Shift key, 1 (number pad) key, 2 (number pad) key, 3 (number pad) key, Left Ctrl key, Fn key, Windows Logo (start menu) key, Left Alt key, Space Bar key, Right Alt key, Right Ctrl key, Zero/Ins (number pad) key, Period/Del (number pad) key, Plus (number pad) key, Enter (number pad) key, Up Arrow key, Down Arrow key, Left Arrow key, Right Arrow key