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).
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
