Product parameters:<br> <br>Product Name: CH340g module (USB to TTL)<br> <br>Product size: 16.5mm 10.0mm 51.4mm (length x width x height)<br> <br>Color: Black packaging: independent electrostatic bag packaging<br> <br>Material: FR4+ electronic product weight: 6.0g<br> <br>Product features:<br> <br>1  the new original CH340G chip. <br> <br>2  using high-quality high-grade yellow pin.<br> <br>3  the design of the power supply PWR  as well as RXD and TXD indicator  easy to understand whether the product is in the work.<br> <br>4 3V3 or 5V power supply.<br> <br>5  3v3 and 5V by short circuiting the risk choice.<br><img src="//gdetail.image-gmkt.com/030/717423496/2016/4/49ff389e-a2b1-4d90-a915-a7fb6c970ac5.jpg"  onerror="this.src='http://gdetail.image-gmkt.com/030/717423496/2016/4/49ff389e-a2b1-4d90-a915-a7fb6c970ac5.jpg'; $(this).attr('onerror'，'');" ><br><br><br><br><br>Packaging Details<br>Unit Type: lot (5 pieces/lot) Package Weight: 0.045kg (0.10lb.) Package Size: 1cm x 1cm x 1cm (0.39in x 0.39in x 0.39in)