Seagate ST3320620A 320GB Barracuda 7200.10rpm 16MB Cache IDE Ultra ATA100 / ATA-6 3.5" Hard Drive

Name: Seagate ST3320620A 320GB Barracuda 7200.10rpm 16MB Cache IDE Ultra ATA100 / ATA-6 3.5" Hard Drive
Brand: Unbranded
SKU: B000GG4TX2
Price: 135.00 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-21

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$135.00

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*Price sourced from Amazon.com. Last updated 2026-07-20. Price and availability subject to change.

Bottom line: The Seagate ST3320620A 320GB Barracuda 7200.10rpm 16MB Cache IDE Ultra ATA100 / ATA-6 3.5" Hard Drive is a specs-and-price decision rather than a crowd-consensus one in the drives & media category, priced around $135.00. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.

Pros & Cons

Pros

✓ More for the money with this high quality Product
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

The Barracuda 7200.10 is the most reliable disc drive around. New perpendicular recording technology supports vertically stored data bits, enabling increased areal density and dependability for workstations and performance PCs..Brand Name: SeagateBuffer: 16 MBDrive Interface Standard: IDE Ultra ATA/100 (ATA-6)Drive Interface: IDEDrive Type: InternalDrive Width: 3.5Product Family: BarracudaProduct Type: Hard DriveRotational Speed: 7200 rpmStorage Capacity: 320 GBDrive PerformanceBuffer: 16 MBMaximum External Data Transfer Rate: 100 MBps (800 Mbps)Rotational Speed: 7200 rpmDrivetrainDrive…

SpecPicks Verdict

SpecPicks scored Seagate ST3320620A 320GB Barracuda 7200.10rpm 16MB Cache IDE Ultra… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the drives & media category. Compare with similarly-priced alternatives in the drives & media category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for drives & media of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Key Features

More for the money with this high quality Product
Offers premium quality at outstanding saving
Excellent product
100% satisfaction

Full Specifications

Brand	Seagate
Color	Silver
Model Name	ST3320620A
Read Speed	100 Megabytes Per Second
Form Factor	3.5-inch
Model Number	ST3320620A
Hard-Drive Size	320 GB
Mfr Part Number	ST3320620A
Special Feature	Portable
Hardware Platform	PC
Installation Type	Internal Hard Drive
Compatible Devices	Desktop
Data Transfer Rate	100 Megabytes Per Second
Additional Features	Portable
Hard Disk Interface	ATA100
Hard Disk Description	Ide
Hard Disk Form Factor	3.5 Inches
Hardware Connectivity	IDE
Connectivity Technology	IDE
Digital Storage Capacity	320 GB

Ready to buy?

Seagate ST3320620A 320GB Barracuda 7200.10rpm 16MB Cache IDE Ultra ATA100 / ATA-6 3.5" Hard Drive is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Last updated 2026-07-20. Price and availability subject to change.