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Western Digital Black² (WD1001X06XDTL) Dual Drive Review Rev. 2.0
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Western Digital Black² (WD1001X06XDTL) SSD + HDD Dual Drive

At first glance, the Western Digital Black² looks like a hybrid drive but it's no hybrid drive. It is a unique combination of a solid state drive and a hard disk drive in a single package. Hence, the term "Dual Drive". Check out its key features :

  • Professional Performance - WD Black² is built by fusing two world-class storage devices together into one dual drive to create the ultimate experience for notebooks and all-in-one PCs. Boot up faster to your operating system with the speed of SSD at your fingertips. WD Black² features innovative 20nm NAND flash with remarkable power efficiency that is poised to redefine what is possible in the storage industry.

  • Shift_Technology - WD Black² Shift_Technology is race-ready from the starting line with enhanced firmware and improved algorithms for faster performance and data management. Features include:

    • 20nm architecture with quad channel NAND processing for increased speed and performance

    • WD customized controller built for increased efficiency of data management per cell resulting in less drag on your PC

    • Improved drive integrity with 8 GB of space for provisioning to help protect and improve SSD reliability

    WD Black² Shift_Technology allows you to migrate larger data files to the hard drive and provides your SSD with less system drag, which increases the overall endurance and mileage of the SSD. With less caching involved, there's less time waiting and more time enjoying the things you love to do most.

  • Reduce SSD wear and tear - With our WD Black², you can move your larger data or write-intensive applications onto the 1 TB hard drive, ultimately extending the life of the SSD and maintaining optimal performance across the dual drive.

  • Industry-leading 5-year limited warranty

Now, let's take a closer look at the new Western Digital Black² Dual Drive!

For more details, read our Comprehensive Review!

To discuss about this review, head over to the forum thread!

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Comprehensive Review


• WD1001X06XDTL

Formatted Capacity

• 119,898,370,048 bytes (SSD)
• 1,000,204,136,448 bytes (HDD)

Guaranteed Sectors

• 234,176,504 sectors (SSD)
• 1,953,523,704 sectors (HDD)

Bytes Per Sector

• 512 bytes (Emulated)

Flash Memory

• Two 64 GB IMFT 60074157 flash memory chips
• 20 nm MLC NAND technology
• 4 channels
• 8 GB overprovisioning

Flash Controller

• JMicron JMF667H


• 2 Platters (500 GB per platter)

Read/Write Heads

• 4 Read/Write Heads

Spindle Speed

• 5,400 RPM


• 128 MB Nanya NT5CB64M16FP-DH DDR3 SDRAM (SSD)

Internal Data Transfer Rate

• 350 MB/s maximum read speed (SSD)
• 140 MB/s maximum write speed (SSD)
• 140 MB/s maximum read/write speed (HDD)

Average Latency

• 5.5 ms (HDD)

Drive Ready Time

• 2.8 seconds


• Serial ATA 6 Gb/s

Supported SATA Data Transfer Mode

• 6.0 Gbits/s
• 3.0 Gbits/s
• 1.5 Gbits/s

SATA Hotplug Capability

• Yes

Native Command Queuing

• Yes

Advanced Format Technology

• Yes

Maximum Height

• 9.50 mm (0.374 inches)

Maximum Width

• 69.85 mm (2.75 inches)

Maximum Length

• 100.30 mm (3.95 inches)

Maximum Weight

• 125 g (0.28 lbs)

Power Requirements

• +5V DC ± 10 %

Power Consumption

• 1.8 W (Read / Write)
• 0.9 W (Idle)
• 0.9 W (Standby / Sleep)

Ambient Temperature

• 5 °C to 60 °C (Operating)
• -40 °C to 70 °C (Non-Operating)

Maximum Shock

• 300 G @ 2 ms (Read / Write)
• 1000 G @ 2 ms (Non-Operating)

Drive Acoustics

• 20 dBA average (Idle Mode)
• 21 dBA average (Quiet Seek Mode)

Non-Recoverable Read Errors

• 1 error per 1014 bits read

Load/Unload Cycles

• 600,000 minimum


• NA


• 5 Years Limited Warranty


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This review system is designed to allow you to quickly receive information on the latest hardware or software. This new system also allows you to quickly get the gist of the review without reading through it. This can be very useful, especially in situations where you need to make a quick purchase decision.

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After thorough testing, we will post a Comprehensive Review of the product. This adds on to the pictorial review with comprehensive test results and our final conclusion on the product.

But no matter whether you are reading a Pictorial Review or a Comprehensive Review, you can always read the summary of the review as well as examine the product's specifications right on the first page. In all our new reviews, we will maintain the first page as a Product Overview page. If the product is listed in PriceGrabber, you can also check out the lowest price online.

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