Check the listing for details. 2 PCS ATSAM3S4CA-AU LQFP100 ATSAM3S4C-AU AT91 ARM Cortex M3-based Processor Chip. Condition: New. Listed at 19.89 USD. Welcome to our Store Item Description Parts NO.: ATSAM3S4CA-AU Package: LQFP100 Quantity: 2 PCS a lot AT91 ARM Cortex M3-based Processor If you buy more quantity, Please contact us Payment Information · We accept Paypal payment only. · Shipping cost cannot be combined. Economy Int'l Shipping is without a tracking number. Standard Int'l Shipping use Registered airmail ,have a tracking number . Shipping Information · Items will be ship within 2 days of payment receive. · Items ship from Hongkong and it takes 10-20 working days (2-4 weeks) to receive for most area. · If you do not receive item over 30 working days (6 weeks), please contact me to investigate the case. Return Policy · Any problem or unhappy with items. You will get refund in full amount. No question ask. Contact Us · If you have any question, please contact me via ebay contact seller. wish you a happy shopping, welcome to the next visit