Seagate Ironwolf NAS 4TB 3.5" 5400RPM 256MB Cache SATA III Internal Hard Drive
Key Features
IronWolf NAS Hard Drives
For multi-user NAS environments that need high workload rated drives.
IronWolf is designed for everything NAS. Get used to tough, ready and scalable 247 performance that can handle multi-bay NAS environments across a wide range of capacities.
IronWolf
IronWolf provides a workload rate of 180 TB/year with scalable 247 performance that can handle multi-bay NAS environments, as well as capacities up to 12 TB. It fits applications like 1- to 8-bay network attached storage (NAS).
Drive Health and Data Recovery
When integrated into compatible NAS systems, these drives provide overall system reliability increases due to IronWolf Health Management (IHM).
- Tech Specs
Drive Specification
Formatted capacity
4000GB (4TB)
Guaranteed sectors
7,814,037,168
Heads
4
Disks
2
Bytes per sector (4K physical emulatedat 512-byte sectors)
4096
Default sectors per track
63
Default read/write heads
16
Default cylinders
16,383
Recording density (max) (KBPI)
2448
Track density (avg) (KTPI)
480
Areal density (avg) (Gb/in2)
1175
SATA interface transfer rate
600MB/s
Maximum sustained data rate
180 MB/s
ATA data-transfer modes supported
PIO modes: 0 to 4
Multiword DMA modes: 0 to 2
Ultra DMA modes 0 to 6
Cache buffer
256MB
Height (max)
20.20mm / 0.795 in (max)
Width (max)
101.85mm / 4.010 in
Length (max)
146.99mm / 5.787 in
Weight (max)
490g / 1.08 lb
Average latency
6.0 ms
Startup current (typical) 12V
1.8A
Voltage tolerance (including noise)
5V: ±5%
12V: ±10%
Non-Operating (Ambient °C)
40 to 70
Operating ambient temperature
(min °C) 0°
Operating temperature
(drive reported max °C) 65°
Temperature gradient
20°C per hour max (operating)
30°C per hour max (nonoperating)
Relative humidity
5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity gradient (max)
30% per hour

















