what is different' s in 16,32,64 mb cache ?

The cache is basically the amount of short term memory the drive will hold and use.The larger the cache the more it will hold in its short term memory.

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Seagate BarraCuda ES ST3750640NS 750GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive

REFURBISHED

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7200 RPM 16MB Cache
SATA 3.0Gb/s
For Daily Computing
90 days limited

🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available

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Seagate Barracuda 750Gb 7200 Rpm Sataii 16Mb Buffer 3.5Inch (1.0 Inch) Form Factor Low Profile Hard Disk Drive

Model
Brand	Seagate
Series	BarraCuda ES
Model	ST3750640NS
Packaging	Bare Drive

Performance
Interface	SATA 3.0Gb/s
Capacity	750GB
RPM	7200 RPM
Cache	16MB
Average Seek Time	8.5ms
Average Latency	4.16ms

Features
Features	7200-RPM spin speed 16-MB cache buffer Perpendicular recording technology for maximum capacity and reliability Native command queuing (NCQ) for enhanced performance Highest reliability rating for 24 x 7 operation Serial ATA (SATA) interface Best-in-class rotational vibration (RV) tolerance Multidrive firmware maximizes system availability
Usage	For Daily Computing

Dimensions
Form Factor	3.5"

Additional Information
First Listed on Newegg	July 28, 2011

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Limited Warranty period (parts): 90 days
Limited Warranty period (labor): 90 days
Xigmatek
Support Phone: 631-343-7232 ext 111
Support Email: [email protected]
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Return Policies

Return for refund within: 30 days
Return for replacement within: 30 days
This item is covered by Newegg.com's 30-Day Return Policy.
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Seagate BarraCuda ES ST3750640NS 750GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive

Refurbished

Learn more about the Seagate ST3750640NS

Customer Reviews of the Seagate ST3750640NS

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info

Item#: N82E16822148782

Seagate BarraCuda ES ST3750640NS 750GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive

Refurbished

Learn more about the Seagate ST3750640NS

Customer Reviews of the Seagate ST3750640NS

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info