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.
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
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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