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The 240 GB Intel 520 Series SSD
The 240 GB Intel 520 Series solid-state drive has the official part number of SSDSC2CW240. It looks identical to the earlier Intel X25-M G2 solid state drive because they both use the same cast aluminium chassis that conveniently doubles as a heatsink.
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This is a 2.5" drive which will fit into any standard 2.5" drive bay, whether in a desktop PC or a notebook. Although it has a SATA 6 Gb/s interface, it will readily run on computers that only support SATA 3 Gb/s or even SATA 1.5 Gb/s. The downside is the drive will be throttled by the slower interface and will not perform to its full potential.
Usable Capacity
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This Intel 520 Series solid state drive officially has a formatted capacity of 240 GB. We checked that out by formatting both in NTFS using Microsoft Windows 7.
The actual formatted capacity was 240,054,693,888 bytes. This is slightly (~54.7 MB) above than the official storage capacity. With about 101 MB allocated to the NTFS file system, the actual usable capacity was about 47 MB below 240 GB.
Let's take a look at its specifications.
Specifications
Model |
• SSDSC2CW240 |
Form Factor |
• 2.5" |
Formatted Capacity |
• 240,057,409,536 bytes |
SSD Controller |
• SandForce SF-2281 |
NAND Flash Model |
• Intel 29F16B08CCME2 |
NAND Flash Type |
• 25 nm Multi-Level Cell (MLC) NAND |
Cache Buffer |
• None |
Interface |
• SATA 3.0 (6 Gbits/s) |
Supported SATA Data Transfer Mode |
• 6.0 Gbits/s |
Other Features |
• SATA Hotplug Capability |
Internal
Data Transfer Rate |
• Read : 550 MB/s maximum (SATA 6 Gb/s) |
Internal
Data Transfer Rate |
• 515-550 MB/s read (SATA 6 Gb/s) |
Input And Output Per Second (Compressible) |
• Random 4K Reads : 50,000 IOPS maximum |
Input And Output Per Second (Incompressible) |
• Random 4K Reads : 46,000~56,000 IOPS maximum |
Average Latency |
• 80 µs (Read) |
Power On To Ready |
• 2 seconds |
Power Consumption |
• 850 mW (Read/Write) |
Maximum Case Temperature |
• 0 °C to 70 °C
(Operating) |
Maximum Shock |
• 1500 G @ 0.5 msec (Operating & Non-Operating) |
Maximum Vibration |
• 2.17 GRMS (5-700 Hz) Max (Operating) |
Drive Acoustics |
• 0 dBA |
Maximum Height |
• 9.5 mm |
Maximum Width |
• 69.85 mm |
Maximum Length |
• 100.2 mm |
Weight |
• 78 g |
MTBF |
• 1,200,000 hours |
Uncorrectable Bit Error Rate |
• < 1 sector (512 bytes) per 10 16 bits read |
Endurance |
• Read : Unlimited |
SATA Insertion Cycles |
• Up to 250 insertion / removal cycles |
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• The 240 GB Intel 520 Series SSD |
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• The SSD Controller, The Flash Memory |
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• Testing The 240 GB Intel 520 SSD |
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