Deal4Go Vrm Heatsink Module Voltage Regulator Vr Thermal Pad 2Fm4C 02Fm4C For Product Details VR HeatSink is the components that convert your 12V to the voltage your CPU needs, Processor heat sinks are essential to keep your system running at maximum efficiency and minimizing costly downtime and repairs. Manufacturer Part Number(s): 2FM4C02FM4CCN-02FM4C Reference list of compatible with De1l Desktop Models:Precisi0n 3640 Tower Workstation (T3640) What's in the Box 1x VR (Voltage Regulator) Heatsink w/ Pads Compatible with Dell Precision Tower 3640 (T3640) Tower Desktop Workstation series ONLY. Manufacturer Part Number(s): 2FM4C, 02FM4C, CN-02FM4C VR HeatSink is the components that convert your 12V to the voltage your CPU needs. Processor heat sinks are essential to keep your system running at maximum efficiency and minimizing costly downtime and repairs. Each Pack come with 1x VR (Voltage Regulator) Heatsink Pads. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.