MPN K38255NA Connection Technology USB 3.0 (DisplayLink) Driverless No Additional Screen Outputs 2 Video Ports DisplayPort++ Maximum Resolution 4K Operating System(s) Chrome OS, macOS, Windows Number of USB Ports 6 USB Fast Charging Yes Docking Station Family The Task Master DockWorks Yes Best For USB 3.0 Laptops, Ultrabooks and Windows Tablets and Monitors that support up to 4K Compatibility Chrome OS 44 or above, Windows 7 or above, macOS 10.14 or above USB 3.0 Ports 6 x USB 3.1 Gen1 Ports: (2) front with one supporting 5V/2.4A fast-charging and (4) back supporting 5V/0.9A Audio 1 x 3.5mm Microphone port (front), 1 x 3.5mm Headphone port (front) Data Transfer Speeds Supports up to 5Gbps data transfer speed Ethernet Speed (Mbps) 1000, 100, 10 Maximum Resolution Supported Single or Dual 4K Monitors: 4096 x 2160 at 60Hz Plug and Play DisplayLink driver installation required Security Slot Compatibility Kensington Security Slot System Requirements USB 3.0 (Type-A) laptops Video Output 2 x DisplayPort 1.2++ 4K Support Yes
Returns for Refund
TheKeyKey.com provides a 30-day refund or replacement warranty for all products with the following exceptions listed below:
Any product not purchased from TheKeyKey.com.
Any product that is no longer in brand new, unopened condition.
Any product that has been installed or has attempted to be installed.
Any product that is returned to us without its original packaging, accessories, manuals, warranty cards, and all other items enclosed in the exact condition in which it was received.
Any product that exhibits physical damage either to the product itself or to the original packing materials and accessories.
Any product with a missing or altered serial number.
Any product that has been submitted for a promotional rebate.
Any product described as "not refundable" on the product details page.
Any custom-built systems manufactured by TheKeyKey.
Any special-order items.
Open-box and refurbished products are final-sale only and are not eligible for refund.
Please verify that your products are eligible for return before requesting an RMA number. Products not eligible for return will be shipped back to you.
Returns for Repair or Replacement
TheKeyKey.com provides a 30-day repair or replacement warranty. Please obtain an RMA number and follow the return instructions included with your number.
All defective, dead on arrival (DOA) items will be inspected and tested by our RMA department. If the item is tested to be in working condition, the RMA will be rejected and the item will be returned to you.
Some items are non-refundable and can only be exchanged for the exact same item. These items are described as "not refundable" on the product detail page.
Defective parts returned for replacement by TheKeyKey must be received within 30 days of the original invoice date. Items received by TheKeyKey after the initial 30-day period are no longer eligible for refund and will be forwarded to the original manufacturer for repair or replacement only, the choice of which will be at the discretion of the manufacturer. For repair or replacement inquiries after 30 days, please contact the manufacturer directly.
For product replacement or refund requests, please return the entire item package including all accessories. Package contents will be verified for completeness before a replacement / refund is issued.
Note that any physical damage will automatically void the product warranty and we will return any products that exhibit physical damage back to you. For example, we cannot accept CPU returns if the item is cracked, chipped, burnt, has bent pins or if the item has sustained any other type of physical damage. We highly recommend carefully reading the manufacturer's instructions before installing your product.
Please make sure that your item is actually defective and that you have ruled out other incompatibility possibilities before returning the product. When we receive the returned item, we must test it thoroughly to verify that it is actually defective because our suppliers (usually the manufacturer) will not accept returns or exchanges for working items. If we determine that the returned item is in working condition, we will ship it back to you.