WD My Passport 4 TB: price per TB and price history
Part number WDBAGF0040BGY-WESNASIN B08RX3TWJZBrand Western DigitalExternal SSD
The WD My Passport 4 TB (WDBAGF0040BGY-WESN) is an external SSD by Western Digital. On amazon.com it costs $719.99 new, which is $180.00 per TB (as of Oct 27, 2026, 9:04 PM UTC). The TB index for external SSDs is $125.50 per TB.
Price per TB, New
Total $719.99 for 4 TB, cheapest new offer, excl. shipping
- 1 day
- 0.0 %
- 7 days
- 0.0 %
- 30 days
- ▲ 2.9 %
- 90-day low
- 175.00
90 days
How much does the WD My Passport 4 TB cost per TB?
The WD My Passport 4 TB costs $180.00 per TB new on amazon.com. That is 43.4% above the TB index for external SSDs ($125.50 per TB). Among 62 new external SSDs it ranks number 30 by price per TB.
| Condition | Price | Price per TB | As of | Offer |
|---|---|---|---|---|
| New | $719.99Oct 27, 2026, 9:04 PM UTC | $180.00 | Oct 27, 2026, 9:04 PM UTC | Amazon* |
Prices: cheapest offer per condition from all sellers on amazon.com (Amazon and marketplace sellers), excluding shipping, timestamp per row. At the top of its product page, Amazon often shows the featured offer from another seller, which can cost more. The button therefore opens the list of all offers. The price may have changed since the timestamp. If the Amazon app opens in another country's store, prices there differ: set the app to United States or open the link in your browser.
How has the price of the WD My Passport 4 TB changed?
Over the last 30 days the price rose by 2.9%, from $699.99 to $719.99. The 90-day low is $175.00 per TB ($699.99). It counts the lowest price that held for at least 2 days.
| Period | Change in price per TB |
|---|---|
| 7 days | 0.0 % |
| 14 days | 0.0 % |
| 30 days | ▲ 2.9 % |
| 90 days | 0.0 % |
Price archive since Jul 29, 2026, updated daily.
What are the specs of the WD My Passport 4 TB?
According to the listing, the WD My Passport 4 TB has 4 TB of capacity, form factor External.
| Spec | Value |
|---|---|
| Brand | Western Digital |
| Part number | WDBAGF0040BGY-WESN |
| ASIN | B08RX3TWJZ |
| Capacity | 4 TB (4 × 10¹² Byte) |
| Form factor | External |
| Technology | SSD |
What are the alternatives to the WD My Passport 4 TB?
At 4 TB, the Sabrent Rocket Nano XTRM 4 TB (SB-XTMN-4TB) costs $150.00 per TB.
| Product | Capacity | Price per TB |
|---|---|---|
| Sabrent Rocket Nano XTRM 4 TB | 4 TB | $150.00 |
| Move Speed Gen 2x2 4 TB | 4 TB | $150.00 |
Frequently asked questions about the WD My Passport 4 TB
Is the WD My Passport 4 TB cheap right now?
The price per TB is 2.9% above the 90-day low of $175.00 and 43.4% above the TB index for its product type (as of Oct 27, 2026, 9:04 PM UTC).
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Prices: amazon.com, timestamp per row. Specs: manufacturer data sheet. Calculation: How the TB index works. All offers External SSD.