Seagate · Enterprise
ST14000NM004J
Exos X18 14TB
SAS 12 Gb/s · 3.5-inch
Exact Amazon US product
Check availability and price on Amazon
View on Amazon US ↗Verified product · check availability and condition on Amazon · ASIN B09C48XCWP
Listing details ↓As an Amazon Associate I earn from qualifying purchases.The Seagate ST14000NM004J is a 14TB Exos X18 hard drive for server and enterprise storage, using SAS 12 Gb/s in a 3.5-inch form factor.
Manufacturer specifications
| Model number | ST14000NM004J |
|---|---|
| Nominal capacity | 14 TB · 14000 GB |
| RPM | 7200 |
| Interface | SAS 12 Gb/s |
| Cache (MB) | 256 |
| Form factor | 3.5-inch |
| Average idle power (W) | 5 |
| Power-on hours per year | 8760 |
| Manufacturer limited warranty | 5 years (eligible new drives) |
| Sustained transfer (up to MB/s) | 270 |
Source: Seagate Exos X18 manufacturer specifications, pages 3. Reviewed 2026-09-07. Published specifications, not our benchmark results.
What the specifications mean
- Up to 270 MB/s sustained transfer, as specified by the manufacturer. This is not a measured game-loading or random-I/O result.
Before ordering
Match ST14000NM004J, 14TB and SAS 12 Gb/s against the selected offer. Check your system’s exact-model compatibility list and the seller’s warranty and return terms.
Amazon US listings
Exact model matches on Amazon.com. A verified ASIN identifies the product; it does not guarantee current stock. Check the selected variant, condition and seller.
Amazon US · ASIN B09C48XCWP
Same-capacity alternatives with Amazon US links
These models share the drive type, interface class and capacity. Compare their specifications and your system requirements before choosing a replacement.
Seagate · Exos X16
ST14000NM002G
14TB · SAS 12 Gb/s
Compare with ST14000NM004J →View on Amazon US ↗ASIN B07T63FGR3 · Check price and conditionSeagate · Exos X16
ST14000NM004G
14TB · SAS 12 Gb/s
Compare with ST14000NM004J →View on Amazon US ↗ASIN B07SZNYCTJ · Check price and conditionST14000NM004J questions answered
What connection does ST14000NM004J need?
ST14000NM004J uses SAS 12 Gb/s. It needs a compatible SAS controller or backplane; a standard motherboard SATA port cannot run it.
How much usable space does ST14000NM004J provide?
Its nominal capacity is 14000 GB, approximately 13038.5 GiB before formatting. The filesystem, reserved space and any RAID redundancy reduce usable capacity further.
What warranty is listed for ST14000NM004J?
Manufacturer specification: 5 years (eligible new drives). A renewed, used, OEM or imported offer can have different coverage. Check the serial number and seller terms before buying.