4 Port USB 3.0 -E Expansion Card Express E USB 3.0 HUB Adapter 4-Port USB3.0 Controller USB 3 0 E E Express 1X

Item Descrtion Question: what is the difference between Model A and Model B? Answer:The power supply mode is different: Model A is powered by 4Pin Molex. Model B is powered by independent power supply module, which is more convenient without external power supply required. FAST USB 3.0 -E E 4 PORTS Expre Expansion Card Adapter. 100% and high quality Super fast and high-capacity transfer solution, stable and reliable Fully compatible with Expre Base Specification Revision 2.0 Supports simultaneous operation of multle USB 3.0, USB 2.0, and USB 1.1 devices Supports 4 downstream ports for all speeds Built-in 4-pin power connector for receiving extra power supply from the system Supports Windows 7 (32-bit/64-bit), Windows Vista (32-bit/64-bit), Windows XP Approx. Size: 11.8cm x 7cm x 1.8cm / 4.6" x 2.8" x 0.7" Freedrive for win 8/10.if win 7,XP ect.,please contact me for the drive. Note:Light shooting and differnent displays may cause the color of the item in the ture a little different from the real thing.The measurement allowed error is ±1-3 cm. What's Include 1 x Expre Card Product tures

About shping
Shping and Pack All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

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Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resoe the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

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If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.