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The Western Digital SiliconEdge Blue 256 GB
The Western Digital SiliconEdge Blue 256 GB solid state drive, which is also known by its official model number of SSC-D0256SC-2100, looks like any other 2.5" hard disk drive. It was certainly designed to conform to the 2.5" form factor, allowing it to easily replace any 2.5" hard disk drive. But you will know that this is no hard disk drive the moment you hold it in your hands - it is as light as a feather!
The label has a lot of important information, like the model number, storage capacity, and the drive's serial number in case you need to RMA it. The label also has other interesting details like its date and place of manufacture. This particular drive was manufactured in the United States during the 8th week of 2010.
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As it only serves to protect the NAND chips, controller and circuit board inside from static damage, the case is flat on both sides. The top has a simple label that lists the model number, capacity, serial number and manufacturing date, amongst other things. The underside is completely featureless.
Usable Capacity
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This Western Digital SiliconEdge Blue 256 GB drive officially has a formatted capacity of 256,060,514,304 bytes. We checked that out by formatting both in NTFS using Windows Vista.
The actual formatted capacity was 256,058,060,800 bytes. This is slightly (~2.5 MB) lower than the official formatted capacity. With about 102 MB allocated to the NTFS file system, the actual usable capacity was just under 256 GB.
Let's take a look at its specifications.
Specifications
Model |
• SSC-D0256SC-2100 |
Formatted Capacity |
• 256,060,514,304 bytes |
Guaranteed Sectors |
• 500,118,192 |
Bytes Per Sector |
• 512 bytes |
Cache Buffer |
• Unknown |
Memory Channels |
• Unknown |
Internal Data Transfer Rate |
• 250 MB/s (maximum read) |
4 KB Random Access |
• Up to 5,000 IOPS (read / write) |
Average Access Time |
• Unknown |
Power On To Ready |
• 1 second |
Power Consumption |
• 3.5 W (Write) |
Interface |
• Serial ATA 3.0Gb/s |
Supported SATA Data Transfer Mode |
• 3.0 Gbits/s |
SATA Hotplug Capability |
• Yes |
TRIM Support |
• Yes (Microsoft Windows 7) |
Maximum Height |
• 9.5 mm |
Maximum Width |
• 69.86 mm |
Maximum Length |
• 98.9 mm |
Weight |
• NA |
Power Requirements |
• 5.0 V ± 5% |
Ambient Temperature |
• 0 °C to 70 °C
(Operating) |
Maximum Shock |
• 1000 G @ 0.5 msec (Operating) |
Maximum Vibration |
• 16.3 G RMS |
Maximum Altitude |
• Up to +80,000 feet |
Drive Acoustics |
• 0 dBA |
Non-Recoverable Read Errors |
• < 1 in 1015 bits read |
Endurance |
• Read : Unlimited |
MTBF |
• 1,400,000 hours |
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