Check the listing for details. 20x40CM Self Adhesive Silicone Thermal Pad Sheet CPU Computer Chip HeatSink. Condition: New. Listed at 19.00 USD. 20x40CM Silicone Thermal SheetThis silicone thermal pad is for use with computer equipment, heat sinks etc. You can cut to shape to suit components.Temp: -40℃ to 260℃ Thermal Conductivity: 3.2w/m-KBreakdown Voltage: 4kv/mmSize: 20x40cmThickness: 1mm,1.5mm,2mm,2.5mm,3mm, you can choose Item Includes:One sheet of Silicone Thermal Pad, please choose the thickness Thank you for choosing our productIf you have any questions, please contact us before purchasing,We will do our best to respond immediately during normal business hours. For some reason, if you are not satisfied with our products or service, please contact us. Items will be shipped out by e-pack within 3 business days upon your payment cleared, normally shipping takes approximately 10-18 business days. For international buyers please contact us for shipping details.