Seagate Capacity 7200RPM 6Gbps 8 TB: price per TB and price history
Part number ST8000NM0055ASIN B016AG0ITUBrand SeagateInternal 3.5"
The Seagate Capacity 7200RPM 6Gbps 8 TB (ST8000NM0055) is an internal 3.5-inch hard drive by Seagate with CMR recording. On amazon.com it costs $389.87 new, which is $48.73 per TB (as of Oct 28, 2026, 12:11 AM UTC). The TB index for internal 3.5-inch hard drives is $36.25 per TB.
Price per TB, New
Total $389.87 for 8 TB, cheapest new offer, excl. shipping
- 1 day
- 0.0 %
- 7 days
- 0.0 %
- 30 days
- ▼ 1.3 %
- 90-day low
- 44.97
90 days
Price per TB, Used
Total $254.00 for 8 TB, cheapest used offer, excl. shipping
- 1 day
- 0.0 %
- 7 days
- 0.0 %
- 30 days
- 0.0 %
- 90-day low
- 25.00
90 days
How much does the Seagate Capacity 7200RPM 6Gbps 8 TB cost per TB?
The Seagate Capacity 7200RPM 6Gbps 8 TB costs $48.73 per TB new on amazon.com. That is 34.4% above the TB index for internal 3.5-inch hard drives ($36.25 per TB). Among 79 new internal 3.5-inch hard drives it ranks number 22 by price per TB.
| Condition | Price | Price per TB | As of | Offer |
|---|---|---|---|---|
| Used | $254.00Oct 28, 2026, 12:11 AM UTC | $31.75 | Oct 28, 2026, 12:11 AM UTC | Amazon* |
| New | $389.87Oct 28, 2026, 12:11 AM UTC | $48.73 | Oct 28, 2026, 12:11 AM 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 Seagate Capacity 7200RPM 6Gbps 8 TB changed?
Over the last 30 days the price fell by 1.3%, from $395.00 to $389.87. The 90-day low is $44.97 per TB ($359.75). It counts the lowest price that held for at least 2 days.
| Period | Change in price per TB |
|---|---|
| 7 days | 0.0 % |
| 14 days | ▼ 2.5 % |
| 30 days | ▼ 1.3 % |
| 90 days | ▲ 2.1 % |
Price archive since Jul 30, 2026, updated daily.
What are the specs of the Seagate Capacity 7200RPM 6Gbps 8 TB?
According to the Seagate data sheet, the Seagate Capacity 7200RPM 6Gbps 8 TB has CMR (conventional magnetic recording), 7,200 rpm and 256 MB cache. CMR suits RAID arrays and continuous operation.
| Spec | Value |
|---|---|
| Brand | Seagate |
| Series | Exos 7E8 |
| Part number | ST8000NM0055 |
| ASIN | B016AG0ITU |
| Capacity | 8 TB (8 × 10¹² Byte) |
| Form factor | 3.5" internal |
| Technology | HDD |
| Recording | CMR |
| Spindle speed | 7,200 rpm |
| Cache | 256 MB |
Source: Seagate data sheet
What are the alternatives to the Seagate Capacity 7200RPM 6Gbps 8 TB?
In the same series, the MFerraz 512e 6 TB (ST6000NM0115) is cheaper at $37.50 per TB. At 8 TB, the Seagate BarraCuda 8 TB (ST8000DM004) costs $33.00 per TB, but uses SMR.
| Product | Capacity | Price per TB | Recording |
|---|---|---|---|
| Seagate Exos 7E8 4 TB | 4 TB | $65.37 | CMR |
| MFerraz 512e 6 TB | 6 TB | $37.50 | CMR |
| Product | Capacity | Price per TB | Recording |
|---|---|---|---|
| Seagate BarraCuda 8 TB | 8 TB | $33.00 | SMR |
Frequently asked questions about the Seagate Capacity 7200RPM 6Gbps 8 TB
Is the Seagate Capacity 7200RPM 6Gbps 8 TB cheap right now?
The price per TB is 8.4% above the 90-day low of $44.97 and 34.4% above the TB index for its product type (as of Oct 28, 2026, 12:11 AM UTC).
Is the Seagate Capacity 7200RPM 6Gbps 8 TB CMR or SMR?
CMR, according to the Seagate data sheet.
Related guides: Best NAS hard drive, CMR vs SMR, SSD vs HDD, Refurbished hard drives, Hard drive prices, Black Friday SSD and hard drive deals, Surveillance hard drive, RAID levels explained, Check hard drive health, How to partition a hard drive
Prices: amazon.com, timestamp per row. Specs: manufacturer data sheet. Calculation: How the TB index works. All offers Internal 3.5".