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Western Digital My Book 4TB
Tracked: $78.26/TB • $313.05 total
4TB • HDD • USB
Compare this My Book option's total price and cost per terabyte.
Compare driveLoading drive details
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Showing all live offers, including 1 non-new.
| Retailer | Price | $/TB | Condition | Stock | Checked |
|---|---|---|---|---|---|
| Amazon via Sales For You 3rd Party |
This lead price comes from a store we show in live offers, but not from the stores we use for the chart. Use the chart before calling it a market low.
Also compare Western Digital My Book 4TB. Compare this My Book option's total price and cost per terabyte.
Compare this My Book option's total price and cost per terabyte.
Compare driveCompare the cost per terabyte of another 6TB option.
Compare drive$308.90 |
$51.48 |
| New |
| - |
| Checked 6h ago |
| BestBuy via Third Party Seller 3rd Party | $349.99 | $58.33 | New | - | Checked 5h 22m ago |
| Newegg via Technology Galaxy 3rd Party | $380.15 | $63.36 | New | - | Checked 1h 1m ago |
| Amazon via HDD Shop 3rd Party | $246.50 | $41.08 | Used | - | Checked 6h ago |
Affiliate note. Some links may earn us a commission. Amazon note. As an Amazon Associate, ListofDisks earns from qualifying purchases.
Daily median $/TB from the stores we compare, alongside the lowest qualified offer observed each day.
| Date | Median $/TB | Low $/TB |
|---|---|---|
| Oct 1, 2026 | $62.28 | $62.28 |
| Oct 2, 2026 | $62.28 | $62.28 |
| Oct 3, 2026 | $62.28 | $62.28 |
| Oct 4, 2026 | $64.54 | $62.28 |
| Oct 5, 2026 | $64.54 | $62.28 |
| Oct 6, 2026 | $62.28 | $62.28 |
| Oct 7, 2026 | $63.36 | $63.36 |
| Oct 8, 2026 | $63.36 | $63.36 |
Price history, alerts, and similar-drive comparisons exclude Amazon and Walmart and use only offers we can reliably compare. Current offers above include more stores.
Observation counts, medians, ranges, and averages by day from the stores we compare.
| Period start | Obs | Median $/TB | Range $/TB | Avg $/TB | Median price |
|---|---|---|---|---|---|
| Oct 1, 2026 | 1 | $62.28 | $62.28 – $62.28 | $62.28 | $373.67 |
| Oct 2, 2026 | 1 | $62.28 | $62.28 – $62.28 | $62.28 | $373.67 |
| Oct 3, 2026 | 1 |
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Another My Book option from Western Digital at a comparable size.
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| $62.28 |
| $62.28 – $62.28 |
| $62.28 |
| $373.67 |
| Oct 4, 2026 | 2 | $64.54 | $62.28 – $66.79 | $64.54 | $387.22 |
| Oct 5, 2026 | 2 | $64.54 | $62.28 – $66.79 | $64.54 | $387.22 |
| Oct 6, 2026 | 1 | $62.28 | $62.28 – $62.28 | $62.28 | $373.67 |
| Oct 7, 2026 | 1 | $63.36 | $63.36 – $63.36 | $63.36 | $380.15 |
| Oct 8, 2026 | 1 | $63.36 | $63.36 – $63.36 | $63.36 | $380.15 |