What is the best portable hard drive for a Mac? There are many options out there. While the Time Capsule would be the ideal companion to work with the MacBook’s Time Machine automatic backup software, it’s expensive and not the best choice for travel – especially if you only need it to back up word processing files and photos. Lacie is good alternative if you’re looking for an external hard drive with a plastic exterior and rubber protector to keep it safe when traveling. It’s very portable and can store 500 GB of memory. This portable external hard drive is compact enough for on-the-move and ideal for use with a laptop computer. The Lacie hard drive can connect to your laptop via USB port or firewire cable.