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The Inspiron 15-3521 has an optional touch screen feature and has a 15.6" display. This laptop is also complete with a matte finish and keyboard complete with number pad.

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What hard drive comes with the Dell 15-3521 laptop

What hard drive comes factory with a Dell 15 - 3521 laptop computer

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Hi @jpicking85 ,

According to the specifications it is capable of taking a sata 3 HDD or SSD. sata 1 and sata 2 drives will work because sata 3 is backward compatible but they will work at the slower speed

The capacity is not specified.

Here’s a link that shows what SSD are compatible with the laptop

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Correction: A lot of the cheaper SATA SSDs are Fixed III now, so what you may find is that if the system is from the Core Duo/Core 2 Duo/pre-2011 with Dell, some are SATA I OR II limited due to Option ROM support or HW like the 1525/1545 with a non SATA III ready chipset since it's just from that era with Dell.

This will have NO ISSUES with Fixed III as it's Ivy Bridge (2012, give or take), but you CANNOT ASSUME with older Dell equipment pre-Sandy. Check the chipset and see if it has support, and if they bothered to support it in the BIOS... When in doubt, Samsung.



According to the specs I linked it supports all 3 i.e. sata I, II and III unless I'm reading it wrong.

From the specifications:

"Storage Interface

• SATA 1.5 Gbps

• SATA 3.0 Gbps

• SATA 6.0 Gbps"



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From the factory, a 500GB SATA III drive if what I’m finding is correct based on Amazon. Most likely a Seagate hard drive since Dell loves them for the lower capacity drives like the one yours came with.

The problem with these factory Seagate drives Dell uses is long term reliability. After the 7.01/7200.11 disasters (7.01 eats your data alive by scraping the platters/7200.11 BSY FW error requiring BSY reset) (ESPECIALLY made in China drives) have a tendency to croak in 3-4 years without fail, so I would recommend replacing it when you can afford to do so because 5 years is when they really begin to act up in my experience. In many cases, they tend to show problems around the 10k+ POH range, give or take. Not all do, but enough have issues it’s usually better to do as preventive maintenance on a machine with one if you can afford to replace it.

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Jonathan picking будет вечно благодарен.
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