External Hard Drives

Estimate your storage needs by totaling current files (photos, videos, backups) and adding growth; common capacities range from 500 GB to multiple terabytes, with 1–4 TB suitable for general use and 8 TB+ for large media libraries or extended backups

HDDs (spinning disks) offer higher capacities at lower cost per gigabyte and are fine for backups and mass storage; SSDs are faster, more durable, and use less power but cost more per gigabyte, making them better for editing, frequent transfers, or portability

Choose interfaces supported by your device: USB 3.0/3.1 Gen1 provides good general performance, USB 3.2/3.2 Gen2 and Thunderbolt offer significantly higher transfer speeds for SSDs; check both the drive’s rated throughput and the cable/port on your computer for best results

If you plan to carry the drive often, prioritize compact, shock-resistant models or SSDs with solid-state construction; desktop external drives are larger and often require external power but offer higher capacities for stationary use

Look for built-in backup software or compatibility with common backup tools, and consider hardware or software encryption (AES-256 or similar) and password protection if storing sensitive data; note that encryption may affect compatibility with different operating systems

Keep the drive in a cool, dry place, safely eject before disconnecting, avoid physical shocks (especially for HDDs), and maintain regular backups; for drives used as long-term archives, verify and refresh data periodically

Compatibility depends on the drive’s filesystem: exFAT is widely supported across Windows and modern macOS without file-size limits, HFS+ or APFS are macOS-native, and ext4 is common on Linux; reformatting is often required to change compatibility and will erase existing data