How to Get Hard Drives for Cheap

This guide shows you practical ways to buy hard drives at the lowest possible cost, whether you need them for a NAS, a gaming PC, or backups. You’ll learn where to look, what to check before buying, and how to avoid common pitfalls. No special tools are required, just a bit of time and a careful eye.

What You’ll Need

• A computer with internet access
• A way to test drives (a SATA-to-USB adapter, or a desktop with free SATA ports)
• Software to check drive health (like CrystalDiskInfo for Windows, or smartctl on Linux/macOS)
• Optional: a screwdriver if you plan to install the drive internally

Step-by-Step

1. Decide what you need. Determine the capacity, form factor (3.5″ for desktops/NAS, 2.5″ for laptops), and interface (SATA, SAS, or NVMe). This narrows your search and prevents impulse buys.
2. Check refurbished and recertified drives. Look at reputable online retailers that specialize in refurbished enterprise drives. These are often pulls from data centers with high endurance and are tested before resale. They typically come with a short warranty (30-90 days).
3. Consider used drives from local marketplaces. Check Craigslist, Facebook Marketplace, or local computer shops. You can often negotiate a lower price, but you must test the drive before buying.
4. Look for deals on new drives. Use price comparison sites and set alerts for price drops. Black Friday, Cyber Monday, and back-to-school sales often have significant discounts. Also, check manufacturer’s clearance sections.
5. Buy in bulk if you need multiple drives. Some sellers offer discounts for 2 or more drives. This is useful if you’re building a NAS or a media server.
6. Negotiate on used drives. If you’re buying from an individual, make a reasonable offer below the asking price. Many sellers expect some haggling.
7. Test the drive before you pay (if possible). For local purchases, bring a laptop with a SATA-to-USB adapter and run a quick health check. For online purchases, test immediately upon arrival.
8. Check warranty and return policy. Even for used drives, ensure there is at least a 30-day return window. For refurbished, a 90-day warranty is common.

Common Mistakes

• Ignoring drive health. Buying a used drive without checking its SMART data or running a surface scan is risky. A drive with reallocated sectors or high power-on hours may fail soon.
• Overpaying for capacity you don’t need. A 16TB drive might be cheap per TB, but if you only need 4TB, you’re wasting money. Stick to your requirement.
• Buying SAS drives for a home PC. SAS drives require a SAS controller or an HBA card; they won’t work with standard SATA ports. Unless you have the right hardware, avoid them.
• Not factoring in shipping costs. A cheap drive with high shipping may end up costing more than a slightly pricier one with free shipping.
• Assuming all refurbished drives are equal. Some sellers grade drives as “Grade A” or “Certified” – these are usually better than untested pulls. Read the description carefully.

Tips

• Use price tracking tools. Websites like CamelCamelCamel or Keepa can alert you when a specific drive’s price drops on Amazon.
• Look for drives with low power-on hours. For used drives, aim for less than 20,000 hours if possible. Enterprise drives often have 50,000+ hours, but that doesn’t mean they’re bad – just more used.
• Check the warranty on new drives. New drives typically have a 2-5 year warranty. A longer warranty is worth a few extra dollars.
• Consider external drives. Sometimes an external hard drive is cheaper than an internal one. You can “shuck” it (remove it from the enclosure) to get an internal drive, but this voids the warranty.
• Join tech forums or subreddits. Communities like r/DataHoarder often share deals on drives. They also discuss reliable sellers.
• Buy from sellers with good feedback. On eBay or Amazon, check the seller’s rating. A 99% positive rating with thousands of sales is a good sign.

Troubleshooting

• The drive is not recognized. Check the SATA cable and power connection. For external drives, try a different USB port or cable. If it’s a new drive, you may need to initialize it in Disk Management (Windows) or Disk Utility (macOS).
• The drive makes clicking noises. This is often a sign of a failing drive. Stop using it immediately and return it if possible. Do not attempt to open it.
• SMART test fails. If the drive shows a failing SMART status, it’s not safe for long-term storage. Back up any data immediately and replace the drive.
• The drive is slower than expected. Check if the drive is connected to a SATA II (3 Gb/s) port instead of SATA III (6 Gb/s). Also, defragmenting a hard drive can help, but don’t defrag an SSD.
• The drive was listed as “new” but shows signs of use. Check the SMART data for power-on hours. If it’s been used, contact the seller for a refund or partial refund.

Frequently Asked Questions

Is it safe to buy used hard drives?

Yes, if you buy from a reputable seller and test the drive thoroughly. Many used enterprise drives have years of life left. Always check SMART data and run a full surface scan before trusting it with important data.

What is a good price per TB for a hard drive?

As a general rule, under $15 per TB is considered cheap, and under $10 per TB is a great deal. Prices vary by market and capacity, but these are good benchmarks.

Should I buy a refurbished drive or a new one?

Refurbished drives are cheaper but have a shorter warranty. If you’re building a RAID or NAS with redundancy, refurbished drives are a cost-effective choice. For a single drive holding critical data, a new drive with a longer warranty is safer.

Can I use a laptop hard drive in a desktop?

Yes, 2.5-inch drives work in desktops, but you’ll need a mounting bracket and a SATA cable. They are slower and have less capacity than 3.5-inch drives, but they’re fine for basic storage.

What does “recertified” mean?

Recertified drives are used drives that have been tested, repaired if needed, and brought back to working condition by the manufacturer or a third-party. They usually come with a warranty and are a good middle ground between used and new.

How do I check a drive’s health?

Use a tool like CrystalDiskInfo (Windows) or smartctl (Linux/macOS) to view SMART data. Look for attributes like Reallocated Sectors, Current Pending Sectors, and Uncorrectable Errors. All should be zero.

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