Sainsmart puts the pro in 4040 pro! The inside of the USB port on my 4040 pro broke loose and came out. Sainsmart sent me a new board. When I put the new board in it was defective. Sainsmart rushed me a board and everything is great! Sainsmart is hands down one of the best companies out there. I will look to see if Sainsmart carries an item before I purchase elsewhere. Sammy and the customer service team are amazing! They absolutely stand by their products and care about their customers! Thank you Sainsmart for all the amazing work you do!

Great products I ordered from that side since the products have great price/quality ratio. everythink went well, fast delivery and products are as they where described. Support helped promptly at one occasion.

Satisfaction Guaranteed I recently purchased an L8 20 watt laser from Sainsmart and was having a problem getting it to connect to the computer. I was dealing with Jamie who assured me they would figure out the problem and within a few days they sent out the parts necessary to get the laser working again. I've been extremely happy with the service I've received from Sainsmart and would gladly recommend them to anyone interested in purchasing a laser. Thanks again Jamie, Steve.

Damaged ER11 collet from set Company replaced the damaged item quickly and without issue with an entire upgraded ER11 collet set.

Excellent customer relations by Sains Smart A communications breakdown somewhere in the system meant that I wasn't aware that the courier had tried to deliver my laser engraver. Sammy, customer relations at Sains Smart, asked for some details and quickly decided to send me a replacement - which took only a couple of days to arrive from China. Very well done, I couldn't have asked for more!