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The 3 TB Western Digital Red (WD30EFRX)
Like many other 3.5" desktop hard drives, the Western Digital WD30EFRX has a label on the top plate and an uncovered PCB on the underside. The label has a lot of important information, like the hard drive model, store capacity as well as its date and place of manufacture. This particular drive was manufactured in Malaysia on 28 June, 2012. Interestingly, Western Digital also added a QR code so you can scan it using your smartphone to learn more about the WD Red NAS hard disk drive.
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While this is an Advanced Format drive, there is no warning on the label about using WD Align with older operating systems like Windows XP. This is because this drive does not "support" older operating systems like Windows XP. You can use this drive in Windows XP or even Windows 98, but you will be limited to the first 2.1 TB.
Usable Capacity
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The 3TB Western Digital Red hard disk drive has an official formatted capacity of 3,000,592 MB. We checked that out by formatting it in NTFS using Microsoft Windows 7.
The actual formatted capacity was 3,000,457,224,408 bytes. This is slightly (135 MB) lower than the official formatted capacity. With about 140 MB allocated to the NTFS file system, the actual usable capacity remained slightly above 3 TB.
Let's take a look at its specifications.
Specifications
Model |
• WD30EFRX |
Formatted Capacity |
• 3,000,592 MB |
Guaranteed Sectors |
• 5,860,533,168 |
Bytes Per Sector |
• 512 bytes (Emulated) |
Platters |
• 3 Platters (1 TB per platter) |
Read/Write Heads |
• 6 Read/Write Heads |
Spindle Speed |
• IntelliPower, fixed speed between 5,400 and 7,200 RPM |
Cache |
• 64 MB DDR2 SDRAM |
Internal Data Transfer Rate |
• 145 MB/s |
Average Seek |
• NA |
Average Latency |
• NA |
Drive Ready Time |
• NA |
Interface |
• Serial ATA 6 Gb/s |
Supported SATA Data Transfer Mode |
• 6.0 Gbits/s |
SATA Hotplug Capability |
• Yes |
Native Command Queuing |
• Yes |
Advanced Format Technology |
• Yes |
Maximum Height |
• 26.1 mm (1.028 inches) |
Maximum Width |
• 101.6 mm (4.00 inches) |
Maximum Length |
• 147.0 mm (5.787 inches) |
Maximum Weight |
• 635 g (1.40 lbs) |
Power Requirements |
• +12V DC ± 10 % |
Power Consumption |
• 4.4 W (Read / Write) |
Ambient Temperature |
• 0 °C to 70 °C
(Operating) |
Maximum Shock |
• 30 G @ 2 ms (Read / Write) |
Drive Acoustics |
• 23 dBA average (Idle Mode) |
Non-Recoverable Read Errors |
• 1 error per 1014 bits read |
Load/Unload Cycles |
• 600,000 |
MTBF |
• 1 million hours |
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• The 3 TB Western Digital Red |
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• Peeking Under The PCB |
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• Testing The 3 TB Western Digital Red |
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<<< Introduction, Packaging : Previous Page | Next Page : Peeking Under The PCB, Connectors & Jumpers, Breather Holes >>>
