HP 590527-281 - Standard keyboard (paint, Black) - Has a 93% island-style key layout - Do NOT feature a numeric keypad (Thailand) Retail
HP 590527-161 - Standard keyboard (paint, Black) - Has a 93% island-style key layout - Do NOT feature a numeric keypad (Latin America) Retail
HP 590526-AD1 - Keyboard assembly (Black) - Features a 93% of standard size, island-style key layout - Do NOT have a numeric keypad (Korea) Retail
HP 590526-AB1 - Keyboard assembly (Black) - Features a 93% of standard size, island-style key layout - Do NOT have a numeric keypad (Taiwan) Retail
HP 590527-291 - Standard keyboard (Black) - Has a 93% island-style key layout - Do NOT feature a numeric keypad (Japan2) Retail