Hard Drive Adapters - Newegg.com

If you need to pull files off an old hard drive or troubleshoot a broken drive in an older machine, it's probably time to look for a new hard drive adapter. Upgrading equipment often demands using devices that use different power standards, so you could need a SATA to Molex power adapter on hand. A SATA cable can run power to optical drives like a hard drive or a DVD-ROM. Hard drive adapters also make it easier to power up an old drive using another computer as a power source.

What Are Uses for Hard Drive Adapters?

Swapping out a motherboard can be a time-consuming task and a hard drive failure is nearly catastrophic. As soon as you're aware that the drive is about to fail, there's still time to transfer files to a functioning device. That task often demands a hard drive adapter. Also, when you upgrade to a new solid-state drive, or SSD, it's easier to mirror your old drive on the new drive. You will almost always need a hard drive adapter, especially if the old drive is inside of an older PC or laptop. When you transfer files from a PC to a Mac environment, a hard drive adapter may be an essential requirement.

Why Use a SATA to Molex Power Adapter?

SATA became a de facto standard interface for many common interfaces because it's a faster and more efficient way to respond to the computing needs of more powerful computers. SATA also grew in popularity because it provides drives staggered and therefore more stable access to a computer's power supply. If you have files backed up on an old hard drive or you are switching out a drive in a PC, an adapter allows you to power the old Molex drive from a SATA power source. SATA also allows for what's commonly called "hot swapping," or replacing a drive or a board without powering down the device. Check out other modular adapters for more cable output and input standards.

How Can You Recognize a Molex Pin?

Before the SATA standard was developed, Molex was a common power standard found in almost every computer. Molex was most frequently used with drives and readers like CD-ROM discs and DVD drives. It is easy to identify a Molex cable due to its common 4-pin design. To convert data from a Molex drive or to power a Molex drive using a 15-pin SATA power adapter source, you need a 4-pin Molex adapter. Check out other data adapters if you need one for serial cable and data port outputs.

What Are Other Uses for a SATA Male to Molex Female Adapter?

If you have a functioning hard drive and need to pull any large files from it without installing it back into a PC, that task probably requires using a SATA USB adapter to move those files to an external hard drive. A popular use for a 4-pin Molex adapter is for powering up case fans and Molex-standard power supplies. Other data converters allow you to connect various devices to chargers and monitors, including game consoles, mobile devices and laptops.

Bestselling Hard Drive Adapters Reviews:

6/3/2025 11:38:56 AM

Works Exactly as Described

“ I think that may be a characteristic of external drive adapters in general since I have a WAVLINK docking station with external power that does the same thing. ”

Sabrent USB 3.0 to SSD / 2.5-Inch SATA I/II/III Hard Drive Adapter (EC-SSHD)

Michael P.

4/8/2025 12:29:01 PM

Well worth the price

“ This is a much sturdier adapter than the Akasa adapter I bought at the same time. ”

Sabrent USB 3.0 to SSD / 2.5-Inch SATA I/II/III Hard Drive Adapter (EC-SSHD)

John B.

12/27/2024 2:16:18 AM

Great Product

“ I "inherited" a few internal SATA hard drives from my son's roommates when he left college. ”

Hannord SATA to USB Adapter USB 3.0 to 2.5" 3.5" SATA III Hard Drive Adapter - External Transfer Cable for SSD/HDD Support UASP, with 12V 2A Power Adapter

David E.

12/2/2024 2:45:59 PM

Works as advertised

“ The hard drive crashed a while back. ”

StarTech IDE2SAT2 IDE to SATA Hard Drive or Optical Drive Adapter Converter - 40-Pin PATA to 2.5" SATA HDD / SSD / ODD Converter

Christian P.

10/31/2023 6:05:13 PM

Excellent Sata Expansion!

“ I put this in my new motherboard to add more hard memories in my computer. ”

ORICO M.2 PCIe M Key to 6 x SATA 6Gbps Adapter Card for Desktop PC Support RAID-PM2TS6

Anonymous

10/25/2023 10:01:58 AM

Works as intended.

“ I have an old shuttle case, only enough room for 1 hard drive and 1 CD-Rom. ”

EnLabs 2X25TO35MAKIT Metal Dual 2.5" to 3.5" Hard Drive Bay Mounting Bracket w/ SATA Data Cable and Power Adatepr Cable- 2 X 2.5" to 3.5" HDD / SSD Mounting Bracket Kit - Black

Larry K.

5/9/2023 9:10:42 AM

StarTech IDE2SAT2 IDE to SATA Hard Drive Adapter Converter - 40-Pin PATA to 2.5" SATA HDD

“ This is the perfect IDE to SATA Adapter when used with the ORICO SSD Tray 2.5 to 3.5 inch Hard Drive HDD SSD Adapter Internal Drive Bay Converter Portable Mounting Kit Caddy. ”

StarTech IDE2SAT2 IDE to SATA Hard Drive or Optical Drive Adapter Converter - 40-Pin PATA to 2.5" SATA HDD / SSD / ODD Converter