This Custom hardware or firmware is $1 dollar per unit quantity. Purpose is to allow custom changes to your order. Usually you have received a custom quotation or email. You must change the quantity so that the price matches the quotation, and then select Add to Cart. Use a combination of the $10.00 and $100.00 items to price match your quotation.
Example: you were quoted $68.00 for your customization. Select 8 units of this $1 item and select 6 units of the $10.00 item found in this same category. When checking out, make sure your shopping cart contains a total of $68.00.