Thank you for your interest, we would like to supply you our free sample for your reference, before we start mass production, please pay attention as follow:

1. For 1~2 layer PCB, we would like to provide free sample 3 pcs for you.
2. For 4 layer PCB, we will return your payment $150 after total mass order amount reach $50000.
3. For 6 layer PCB, we will return your payment $250 after total mass order amount reach $50000.

Free PCB samples are based on below techniqal parameters:
1. Material: FR4 TG135
2. Solder mask: Green
3. Silk screen: White
4. Board thickness:1.6mm
5. Copper thickness:1oz
6. Surface finishing: HASL, ENIG, OSP

Please contact us for Free PCB samples, contact now !