Is the hard drive 100% new?

The unit I purchased back in February was brand new. It has been installed in a laptop and has been working great! I hope this helps.

What is meant by Bare Drive in the description? The picture seems to be a drive in its caddy that is inserted into the Laptop HDD carriage. Some other vendors use Bare Drive to mean that the drive excludes the caddy. Please explain.

a bare drive means there is nothing loaded on it as some drives come with an operating system a bare drive is nothing installed

Will this drive work in my HP G71 laptop?

This should work ok. It is a sata drive. Pls note that it is out of stock. I ordered this drive for my laptop in sept 2014 and it only took 2 weeks for newegg to find it.

Will this work with a MacBook Pro 2009?

I am not sure to be honest. Sorry i can't help. I use this as an external harddrive

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Main image of Seagate Momentus 7200.4 ST9500420AS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive

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Seagate Momentus 7200.4 ST9500420AS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive

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SATA 3Gb/s, 7200 RPM, 16 MB Cache
Height: 9.50mm

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USED Seagate Momentus 7200.4 ST9500420AS 500GB SATA II 2.5 in Laptop Hard Drive Erased (DoD 5220.22 M Compliant) and tested good (Not formatted, partitioned, or allocated). Sold as used and in working condition. There may be drives that have up to 25 bad sectors. There may be writing or markings on the drive or the drive may vary slightly (color and/or label may differ) from picture but the model numbers will be the same.

High Performance Hard DriveThe high performance 7200 RPM 2.5” hard drive provides a large capacity of 500GB, perfect for storing and backing up your movies, music, applications and documents.
SATA Interface with Native Command QueuingEmploying the Native Command Queuing technology, the SATA interface delivers an amazing internal data rate of 3.0Gb/s for ultra-fast file transfer.
G-Force ProtectionComing with optional G-Force Protection technology, the Seagate Momentus 7200.4 ST9500420AS provides you the enhanced anti-shock data protection capability during operation.

Best Seller Ranking	#41 in Laptop Internal Hard Drives

Model
Brand	Seagate
Series	Momentus 7200.4
Model	ST9500420AS
Packaging	Bare Drive

Performance
Interface	SATA 3.0Gb/s
Capacity	500GB
Flash Memory Capacity	N/A
Cache	16MB
RPM	7200 RPM

Features
Features	Important Warranty Information This product is end-of-sale and no longer warranted by the manufacturer. Instead, Newegg warranties this product for one year from date of purchase. If you require warranty service after thirty days, please contact Newegg Customer Service, not the manufacturer.
Usage	Ideal for Servers

Dimensions
Form Factor	2.5"
Height (maximum)	9.5mm
Width (maximum)	69.75mm
Length (maximum)	100.30mm

Additional Information
First Listed on Newegg	January 29, 2009

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Limited Warranty period (parts): 1 year
Limited Warranty period (labor): 1 year
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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. Read full return policy for details.

Seagate Momentus 7200.4 ST9500420AS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive

Learn more about the Seagate ST9500420AS

Customer Reviews of the Seagate ST9500420AS

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info

Item#: N82E16822148374

Seagate Momentus 7200.4 ST9500420AS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive

Learn more about the Seagate ST9500420AS

Customer Reviews of the Seagate ST9500420AS

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info