WD Elements Portable 2TB 3TB 4TB 5TB Manufacturer Recertified Hard Drive by Western DigitalBROWN BOXED 1 Year Warranty With Bipra Limited Portable Storage Hard Drive For Computer Laptop Western Digital 2TB 3TB 4TB HDD External Hard Drive Disk Original WD USB 3.0 2.5' If you can access another device just not the HD then I think your drive is in big trouble.See shipping cost, Ships to United Kingdom, Antigua and Barbuda, Austria, Belgium, Bulgaria, Republic of Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Bahrain, China, Israel, Norway, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Belize, Bermuda, Bolivia, Barbados, Brunei Darussalam, Cayman Islands, Dominica, Guernsey, Gibraltar, Guadeloupe, Grenada, French Guiana, Iceland, Jersey, Jordan, Cambodia, Saint Kitts-Nevis, Saint Lucia, Liechtenstein, Sri Lanka, Macau, Monaco, Maldives, Montserrat, Martinique, Oman, Pakistan, Paraguay, Reunion, Turks and Caicos Islands, Aruba, Saudi Arabia, United Arab Emirates, Bahamas, Colombia, Costa Rica, Guatemala, Honduras, Jamaica, Kuwait, Panama, Qatar, Trinidad and Tobago, Dominican Republic, El Salvador, Australia, United States, Canada, Japan, New Zealand, Chile If this works then the fuse link within your systems USB port/s are blown. Connect your HD to the hub (which has its own power supply & AC connection) then connect your Mac to the hub are you able to see the drive now? You may want to try another USB device off of the hub to verify things. If that too fails you will need to get a Powered Hub. If your system is not able to see other USB devices then you have a bad USB port. If not you could have a bad connection to the drive (likely USB) see if you can access a USB thumb drive or other device via the USB ports of your system if you can then the cable to the drive or the drive its self is in trouble. If you can that would imply the drive needs repair.

OK open Disk Utility which is in your Utility folder in the Apps Folder. I assume your Mac is working its just not able to access the external WD drive.

Wd elements driver for mac