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Seagate U-series 20GB HDD 3.5" Ultra-ATA/100

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Hard disk drives are today's fastest permanent storage media and have a large capacity. For this two reasons they are the most used storage medium in computers and servers. When buying a new hard disk, there are three important things to consider: - The connection of the disk to the computer or other device you will be using it with has a big influence on the speed with which data can be read from/written to the disk. Make sure the connection of the disk you buy is compatible with your computer! - The rotational speed is also important for the speed with which data can be read from/written to the disk and determines the time it takes to find a file on the disk. - Last but not least, the storage capacity of the disk, i.e. the amount of data that can be stored on the disk.
Internal Hard Drives
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only logistic data imported: we have only basic data imported from a supplier, a data-sheet is not yet created by an editor.
created bySeagate: a data-sheet is imported from an official source from a manufacturer. But the data-sheet is not yet standardized by an Icecat editor.
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Info modified on: 03 Jan 2019 17:46:03
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Long product name Seagate U-series 20GB HDD 3.5" Ultra-ATA/100 :
The short editorial description of Seagate U-series 20GB HDD 3.5" Ultra-ATA/100

20GB HDD, DMA/ATA-100 (Ultra), 5400Rpm
Seagate U-series 20GB HDD 3.5" Ultra-ATA/100:
The official marketing text of Seagate U-series 20GB HDD 3.5" Ultra-ATA/100 as supplied by the manufacturer

The U Series family of disc drives is now available in capacities of up to 80 Gbytes. This generation of U Series drives offers the best combination of performance, acoustics and reliability. Idling at just 2.9 bels, U Series is one of the quietest drives available. And with Seagate's exclusive 3D Defense, no other drive provides more to protect end-users' data. Count on U Series drives for reliable performance in PCs, consumer electronics devices, and industrial applications.

Short summary description Seagate U-series 20GB HDD 3.5" Ultra-ATA/100:
This short summary of the Seagate U-series 20GB HDD 3.5" Ultra-ATA/100 data-sheet is auto-generated and uses the product title and the first six key specs.

Seagate U-series 20GB HDD, 3.5", 20 GB, 5400 RPM

Long summary description Seagate U-series 20GB HDD 3.5" Ultra-ATA/100:
This is an auto-generated long summary of Seagate U-series 20GB HDD 3.5" Ultra-ATA/100 based on the first three specs of the first five spec groups.

Seagate U-series 20GB HDD. HDD size: 3.5", HDD capacity: 20 GB, HDD speed: 5400 RPM

HDD size *
HDD capacity *
20 GB
HDD speed *
5400 RPM
Interface *
Type *
Storage drive buffer size
2 MB
HDD number of heads
Read seek time
9.9 ms
Write seek time
10.9 ms
Full stroke seek time
24 ms
Track to track seek time
2 ms
Average seek time
8.9 ms
Average latency
5.55 ms
Bytes per sector
Power consumption (typical)
7.5 W
Power consumption (standby)
1.2 W
Power consumption (read)
7.5 W
Power consumption (write)
7.5 W
Power consumption (idle)
5 W
Operating voltage
5 / 12 V
Start-up current
2.5 A
Operational conditions
Operating temperature (T-T)
0 - 60 °C
Storage temperature (T-T)
-40 - 70 °C
Operating relative humidity (H-H)
5 - 90%
Storage relative humidity (H-H)
5 - 95%
Operating vibration
0.5 G
Non-operating vibration
5 G
Operating altitude
-60.96 - 3048 m
Non-operating altitude
-121.92 - 12192 m
Operating shock
63 G
Non-operating shock
350 G
Weight & dimensions
101.8 mm
26.1 mm
147 mm
680 g