500GB I-O DATA external hard drive, convenient USB connection. - Brand: I-O DATA - Storage Capacity: 500GB - Model Name: HDPF-UT - Connectivity: USB - Country of Manufacture: Japan Thank you for viewing. As shown in the photos, it's formatted in exFAT, and I've confirmed it connects to a MacBook. Includes the main unit and USB cable only. Purchased around 2014, it wasn't constantly connected and was mainly used for backing up photos and videos. Haven't used it in the last 2-3 years.