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Comparison Seagate Exos 7E10 512e/4KN SATA ST10000NM017B 10 TB vs WD Ultrastar DC HC330 WUS721010ALE6L4 10 TB
WUS721010ALE6L4

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Seagate Exos 7E10 512e/4KN SATA ST10000NM017B 10 TB
WD Ultrastar DC HC330 WUS721010ALE6L4 10 TB WUS721010ALE6L4
Seagate Exos 7E10 512e/4KN SATA ST10000NM017B 10 TBWD Ultrastar DC HC330 WUS721010ALE6L4 10 TB
WUS721010ALE6L4
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Placementbuilt-inbuilt-in
TypeHDDHDD
Featuresserverserver
Size10000 GB10000 GB
Form factor3.5 "3.5 "
ConnectionSATA3SATA3
Manufacturer's warranty5 years5 years
Technical specs
Cache memory256 MB
RPM7200 rpm7200 rpm
Data transfer rate263 MB/s
Operation power consumption11.8 W
Standby power consumption7.8 W
MTBF2 M h2 M h
MTBF600 K
General
Size147x102x26 mm147x102x26 mm
Weight716 g750 g
Added to E-Catalogaugust 2022july 2020

Cache memory

The amount of internal hard drive memory. This memory is an intermediate link between the high-speed computer RAM and the relatively slow mechanics responsible for reading and writing information on disk platters. In particular, the buffer is used to store the most frequently requested data from the disk — thus, the access time to them is reduced.
Technically, the size of the buffer affects the speed of the hard drive — the larger the buffer, the faster the drive. However, this influence is rather insignificant, and at the level of human perception, a significant difference in performance is noticeable only when the buffer size of the two drives differs many times — for example, 8 MB and 64 MB.

Data transfer rate

The speed of data transfer between the disk and client devices is determined by the type of drive, spindle speed, memory buffer size and connection connectors. The last parameter is the most important, since it is impossible to exceed the bandwidth of a particular interface.

Operation power consumption

The amount of power consumed by the disk when reading and writing information. In fact, this is the peak power consumption, it is in these modes that the drive consumes the most energy.

HDD power consumption data is needed primarily to calculate the overall system power consumption and power supply requirements for the system. In addition, for laptops that are planned to be used often "in isolation from outlets", it is advisable to choose more economical drives.

Standby power consumption

The amount of power consumed by the disk "idle". In the on state, the disk platters rotate regardless of whether information is being written or read or not — maintaining this rotation takes the energy consumed while waiting.

The lower the power consumption while waiting, the more economical the disk is, the less energy it consumes. At the same time, we note that in fact this parameter is relevant mainly when choosing a drive for a laptop, when energy efficiency is crucial. For stationary PCs, “idle” power consumption does not play a special role, and when calculating the requirements for a power supply, it is necessary to take into account not this indicator, but the power consumption during operation (see above).

MTBF

Guaranteed (minimum) number of hard drive on-off cycles after which it will remain operational. The higher this number, the more reliable the drive.
Seagate Exos 7E10 512e/4KN SATA often compared