Uno CNC Shield V3 Engraving Machine A4988 Driver Expansion Board

Uno CNC Shield V3 Engraving Machine/A4988 Driver Expansion Board

Descriptions of A4988 Driver Expansion Board
100% brand new and high quality
This expansion board as a driver expansion board, can be used for engraving machines, 3D printers.
It is a total of four slots, can drive four A4988 stepper motor. Each road stepper motors only need two IO ports.

In other words, six IO ports can be well managed three stepper motors. Very convenient to use.
UNO for Arduino module IO port correspondence introduction.

Parameters of A4988 Driver Expansion Board

The Time to Receive Your Items

There are two key factors which will affect the time you receive your items
1) Item processing time
If you only buy JH stock, we can ship out in 3-5 working days
If your order includes JH stock, sourcing products, or packages from your other suppliers,usually we can ship out in two weeks
2) Shipping method you choose
Your own forwarder in China 1-3 working days
DHL&TNT&UPS&Fedex: 3-7 working days
EMS: 6-10 working days
Airport to Airport: 8-10 working days
Train Shipment: 20-25 working days
Sea Shipment: 25-30 working days

Shipping Methods We Support

1) DHL, Fedex, UPS, TNT,EMS for air shipments
2) Big shipment by Air/Train/Sea
3) Customers' forwarder in China (Free for Shenzhen&Guangzhou City)
Track Your Shipment
JH sales will send you tracking number&information after we arrange the shipment out

About Import Taxes

1) You have to know about the import duty rule of your country before placing order
JH is not responsible for customers' import duty and customs cost
JH does not add any sales taxes or hidden charges on customers' order
2) Many countries do not charge import duties on private items, samples, and goods below a certain stated value
JH sales can write lower value on the shipping invoice if you want to reduce the taxes

Common Problems in Shipping Process

a) During the Christmas period (December), the number of the postal parcel increases fast, which will lead to a waiting time of all the products
b) When the parcel get to the target country's customs, they may need to contact you in certain cases to confirm shipment details
The fees caused by the procedure of the clearance should be paid by the consignee
c) The expense caused by the parcel rejection will be afforded by the consignee
d) The extra expense caused by some cases (address is not very clear or the consignee can not be contacted) should be paid by the recipient
If the parcel is destroyed by the customs, the expense is also paid by the consignee
In general,shipping problems are relatively rare
We check all orders to ensure the delivery information is sufficient for the courier
And tracking details are given to customers so that they know when to get the delivery
For the problems happened in the process of shipping JH Electronics Sourcing will offer full assistance

We are a leading wholesale exporter supplying a wide range of electronic products, and staffed by a young and excellent team.

JH is a bridge that connects JH customers with thousands of products from Huaqiangbei Market, Taobao,1688 and Tmall shops.

With factory-direct stock, professional sourcing service,one-stop logistics support,we are committed to bringing China's high-quality goods, efficient supply chain and top class product&service to our customers.