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PM951 Series
(M.2 PCIe Gen3 SSD)
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SAMSUNG M.2 (NGFF) PCIe Gen3 SSD
PM951 Series (NVMe)
Capacity 1)
User Addressable Sectors |
| Capacity |
Max LBA |
| 512GB1) |
1,000,215,216 |
| 256GB1) |
500,118,192 |
| 128GB1) |
250,069,680 |
NOTE:
1) Gigabyte (GB) = 1,000,000,000 Bytes, 1 Sector = 512Bytes
2) Max. LBA shown in Table 1 represents the total user addressable sectors in LBA mode and calculated by IDEMA rule. |
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Performance 1)
Drive Performance Gen3 |
| Parameter |
Unit |
Queue Depth |
128GB |
256GB |
512GB |
Sequential Read2)
(Up to) |
MB/s |
QD = 1 |
620 |
750 |
760 |
| MB/s |
QD = 32 |
950 |
1580 |
1820 |
Sequential Write2)
(Up to) |
MB/s |
QD = 1 |
150 |
300 |
600 |
| MB/s |
QD = 32 |
150 |
300 |
600 |
Random Read3)
(Up to) |
IOPS |
QD = 1 |
11K |
11K |
11K |
| IOPS |
QD = 32 |
140K |
250K |
270K |
Random Write3)
(Up to) |
IOPS |
QD = 1 |
37K |
54K |
54K |
| IOPS |
QD = 32 |
37K |
76K |
150K |
NOTE:
1) Performance measured using IOMeter V1.10 on Windows 8 64bit. Actual performance may vary depending on use conditions and environment
2) Sequential performance measured using 128KB data size. (QD=32 by worker 1, QD=1 by worker 1)
3) Random performance measured using 4KB data size. (QD=32 by worker 4, QD=1 by worker 1) |
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| Power |
Maximum Ratings
| Parameter |
Specifications |
| Supply Voltage |
Allowable voltage |
3.3V ± 5% |
| Allowable noise/ripple |
100mV p-p or less |
Power Consumption for M.2 (3.3V Supply)
| Parameter |
Specifications |
| Power Consumption |
Active (Typical, RMS) |
4.5W |
| Idle1 (Typical) |
1.7W |
| L1.2 (Typical) |
2.5mW |
NOTE:
1) Idle Power is measured on Idle status with APST(Autonomous Power State Transition) off. |
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| Reliability |
MTBF
MTBF is Mean Time Between Failure, and is the predicted elapsed time between inherent failures of a system during operation. As same word,
AFR (annual failure ratio) is 0.4%. MTBF can be calculated as the arithmetic average time between failures of a system.
| MTBF Specifications |
| Capacity |
MTBF |
| 128GB |
1,500,000 Hours |
| 256GB |
| 512GB |
UBER
UBER is Uncorrectable Bit Error Rate.
| UBER Specifications |
| Parameter |
Specification |
| UBER |
< 1 sector per 1015 bits read |
Environmental Specification
Temperature, Humidity, Shock, Vibration
| Parameter |
Mode |
Specification |
| Temperature (Tc) |
Operating1) |
0°C to 70°C |
| Non-operating |
-40°C to 85°C |
| Humidity2) |
Non-operating |
5% to 95% |
| Shock3) |
Non-operating |
1500G |
| Vibration4) |
Non-operating |
20G |
NOTE:
1) Temperature is measured by SMART Temperature. Proper airflow recommended
2) Humidity is measured in non-condensing
3) Test condition for shock: 0.5ms duration with half sine wave
4) Test condition for vibration: 10Hz to 2000Hz |
Physical dimensions and Weight
| Parameter |
Value |
| Width |
22.00 ± 0.15 mm |
| Length |
80.00 ± 0.15 mm |
| Thickness |
3.73 mm |
| Weight |
128/256/512GB |
Max 8g |
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