Seagate Barracuda ST3320620A 7200.10 320GB 7.2K Ultra ATA/100 Hard Drive

Seagate Part #/MPN: ST3320620A

DiscTech Item #: SGT-ST3320620A-BN-OE

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Capacity: 320GB

Speed: 7,200RPM

Interface Types: IDE ATA 3.5in

Form Factor: 3.5inx1.0in LFF Hard Drive

Sector Size: 512 / 512e

Sustained Throughput: 100

Average Seek Time: 11/12

Electrical Interface: EIDE Ultra ATA100 100MBps

On-Board Cache: 16MB

Seagate Barracuda ST3320620A 7200.10 320GB 7.2K Ultra ATA/100 Hard Drive - Brand New

Seagate Barracuda 7200 drives, from the world’s premier storage provider, deliver years of reliable service and high performance. The Barracuda 7200.10 drive offers an unmatched combination of reliability, performance and capacity. Available in a wide range of capacities and configurations, the Barracuda 7200.10 drive is the ideal choice for mainstream PCs, performance PCs, gaming and workstations, desktop RAID and personal external storage devices.

ALT PNs: 9BJ04G-307

Specifications320 GB
Model NumberST3320620A



Ultra ATA/100
Height (max)26.1 mm  (1.028 inches)
Width (max)101.6 mm  (4.010 inches)
Length (max)146.99 mm  (5.787 inches)
Weight (typical)635 grams  (1.40 pounds)
Cache16 MBytes
Capacity320 GB
Guaranteed Sectors






Spindle Speed

7200 rpm

Native Command Queuing


Average latency

4.16 msec

Random read seek time

<11.0 msec

Random write seek time

<12.0 msec

Maximum interface transfer rate


100 Mbytes/sec



Annual Failure Rate


Unrecoverable read errors

1 in 1014

Average idle current

9.30 watts

Average seek power

12.60 watts

Standby power

0.80 watts

Sleep power

0.807 watts

Maximum start current, DC


2.80 amps





Ambient operating temperature (min)

0 degrees C

Ambient operating temperature (max)

60 degrees C

Ambient nonoperating temperature (min)

-40 degrees C

Ambient nonoperating temperature (max)

70 degrees C

Maximum operating temperature change

20 degrees C per hour

Maximum nonoperating temperature change

30 degrees C per hour

Maximum operating case temperature


69 degrees C



Minimum Relative humidity (operating)


Maximum Relative humidity (operating)


Minimum Relative humidity (nonoperating)


Maximum Relative humidity (nonoperating)


Maximum allowable humidity change


30 % per hour



Operating altitude (min)

-60.96 meters

Operating altitude (min)

-200 feet

Operating altitude (max)

3,048 meters

Operating altitude (max)

10,000 feet

Nonoperating altitude (min)

-60.96 meters

Nonoperating altitude (min)

-200 feet

Nonoperating altitude (max)

12,192 meters

Nonoperating altitude (max)


40,000 feet



European Union Restriction of Hazardous Substances






Operating Shock (max)

68 Gs

Operating shock 

2 msec

Nonoperating Shock (max)

350 Gs

Nonoperating shock 

2 msec

Operating vibration

0.25 Gs

Operating vibration

5-22 Hz

Operating vibration

0.50 Gs

Operating vibration

22-350 Hz

Operating vibration

0.25 Gs

Operating vibration

350-500 Hz

Nonoperating vibration

0.25 Gs

Nonoperating vibration

5-22 Hz

Nonoperating vibration

5.0 Gs

Nonoperating vibration

22-350 Hz

Nonoperating vibration

1.0 Gs

Nonoperating vibration


350-500 Hz



Acoustics (Idle Volume)

2.5 bels

Acoustics (Seek Volume)

3.0 bels

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Alternate MPNs: 9BJ04G-307

Weight: 1.8 lb

Warranty: 1 Year DiscTech

Brand New

Condition Levels Explained

The product is brand new.

1 Year DiscTech Warranty

Product Warranties Explained

The product has a DiscTech warranty for the time period specified. View our limited warranty