SUNMALL New Laptop Keyboard with Frame for HP ProBook 4540s 4540 4545s Series Compatible with Part Number 702237-001 683491-001 701485-001 Black US Layout Silver frame cocoon Automatic Gain Control: 40db with

Automatic Gain Control: 40db with Maxim 9814 Chip

DIY Lighting (2 Rolls of 32

PREMIUM MATERIAL - Crafted from premium silicone that is soft yet supportive

XLR Connector with internal strain relief for rugged reliability

SUNMALL New Laptop Keyboard with Frame for HP ProBook 4540s 4540 4545s Series Compatible with Part Number 702237-001 683491-001 701485-001 Black US Layout Silver frame cocoon Automatic Gain Control: 40db withSUNMALL New Laptop Keyboard with Frame for HP ProBook 4540s 4540 4545s Series Compatible with Part Number 702237 001 683491 001 701485 001 Black US Layout Description Pay Attention: If some keys will don't work after installed ,this is not because keyboard is broken but you don't connect well the ribbon cable of our keyboard with your laptop ,pls try to reconnect more times . Many customers solve this problem after did this. We tested every keyboard