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Western Digital Caviar Green 640 GB

Category: Storage

Manufacturer: Western Digital

Type: HDD

Interface: SATA

Capacity: 640

Read: 550 MB/s

Price: $34.36 from Amazon

Western Digital Caviar Green 640 GB - Storage
Western Digital

Western Digital Caviar Green 640 GB

Type

HDD

Interface

SATA

Capacity

640

Read

550 MB/s

Best price from Amazon

$34.36

Buy on Amazon

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Used Market EstimateeBay sold listings
$26$34.36Save 24%
Low: $22-High: $29(eBay avg)
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Overview

This is a 640GB 3.5" HDD on the SATA interface. At roughly $0.05 per gigabyte it sits in the budget tier. Sequential throughput reaches 550 MB/s reads and 520 MB/s writes, backed by 32MB of cache. SATA throughput caps near 550 MB/s — fine for game libraries and backups, slower for heavy scratch work.

Expect to pay around $34.36, which lands it among budget options. Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. Western Digital backs the product through its standard warranty channels; check the listing for region-specific terms.

SpecificationValue
TypeHDD
Cache32
Capacity640
InterfaceSATA
Read Speed550 MB/s
Form Factor3.5"
Write Speed520 MB/s
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