Page 9 from comparison Samsung PM991a NVMe M.2 512GB capacity

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Compare Mushkin Delta Nvme M2 4Tbwith Samsung PM991a NVMe M.2 512GB capacity

Feature	Mushkin Delta Nvme M2 4Tb	Samsung PM991a NVMe M.2 512GB capacity
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions
Memory Capacity	4 terabyte (tb)
Flash Memory Specifications
Controller		-
Sequential Read Speed	4975 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	3975 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	false
Operating Temperature Range		-
Operating Voltage	3.3 volt (v)	-
Average Lifespan	1,800,000 hours (MTBF) / 800 Terabytes Written (TBW)	-
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	false	false
Encryption Technology		-
Additional Features		-
Certifications and Approvals		-
Size and Dimensions	3.8 * 22 * 80 millimeter (mm)	-
Product Weight	7 gram (g)	-
LED Status Indicator	false	false

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Compare Samsung PM991a NVMe M.2 512GB capacitywith Western Digital Blue Wds500G2B0A 500Gb

Samsung VS Blu

Feature	Samsung PM991a NVMe M.2 512GB capacity	Western Digital Blue Wds500G2B0A 500Gb
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions		2.5 inch
Memory Capacity
Flash Memory Specifications
Sequential Read Speed	3100 megabytes per second (mb/s)	560 megabytes per second (mb/s)
Sequential Write Speed	1800 megabytes per second (mb/s)	530 megabytes per second (mb/s)
Random Read Speed		95,000 IOPS
Random Write Speed		84,000 IOPS
DRAM Memory	false	false
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	false	true
LED Status Indicator	false	false
Operating Temperature Range	-	0 to 70 degrees Celsius
Average Lifespan	-	1,750,000 hours (MTTF) / 200 Terabytes Written (TBW)
Power Consumption	-
Certifications and Approvals	-
Size and Dimensions	-	7 * 69.85 * 100.2 millimeter (mm)
Product Weight	-	37.4 gram (g)

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Compare Samsung PM991a NVMe M.2 512GB capacitywith Western Digital Blue Wds100T1B0A 1Tb

Samsung VS Blu

Feature	Samsung PM991a NVMe M.2 512GB capacity	Western Digital Blue Wds100T1B0A 1Tb
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions		2.5 inch
Memory Capacity		1 terabyte (tb)
Flash Memory Specifications
Sequential Read Speed	3100 megabytes per second (mb/s)	545 megabytes per second (mb/s)
Sequential Write Speed	1800 megabytes per second (mb/s)	525 megabytes per second (mb/s)
Random Read Speed		100,000 IOPS
Random Write Speed
DRAM Memory	false	true
NCQ Support	false	true
TRIM Support	false	true
RAID Support	false	false
S.M.A.R.T Support	false	true
LED Status Indicator	false	false
Controller	-
Operating Voltage	-	5 volt (v)
Average Lifespan	-	1,750,000 hours (MTTF) / 400 Terabytes Written (TBW)
Power Consumption	-
Encryption Technology	-
Certifications and Approvals	-
Size and Dimensions	-	7 x 69.85 x 100.5 mm
Product Weight	-	59.7 gram (g)

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Compare Samsung PM991a NVMe M.2 512GB capacitywith Western Digital Green Wds480G1G0B M2 480Gb

Samsung VS Ds

Feature	Samsung PM991a NVMe M.2 512GB capacity	Western Digital Green Wds480G1G0B M2 480Gb
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions
Memory Capacity
Flash Memory Specifications		-
Sequential Read Speed	3100 megabytes per second (mb/s)	540 megabytes per second (mb/s)
Sequential Write Speed	1800 megabytes per second (mb/s)	465 megabytes per second (mb/s)
Random Read Speed		-
Random Write Speed		-
DRAM Memory	false	false
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	false	false
LED Status Indicator	false	false
Average Lifespan	-
Additional Features	-
Size and Dimensions	-	1.5 * 22 * 80 millimeter (mm)
Product Weight	-	6.51 gram (g)

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Compare Samsung 970 Evo Nvme M2 1Tbwith Samsung PM991a NVMe M.2 512GB capacity

Samsung VS Samsung

Feature	Samsung 970 Evo Nvme M2 1Tb	Samsung PM991a NVMe M.2 512GB capacity
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions
Memory Capacity	1 terabyte (tb)
Flash Memory Specifications
Controller		-
Sequential Read Speed	3400 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	2500 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	true	false
DRAM Memory Type		-
Operating Temperature Range		-
Operating Voltage	3.3 volt (v)	-
Average Lifespan	1,500,000 hours (MTBF) / 600 Terabytes Written (TBW)	-
Power Consumption		-
NCQ Support	false	false
TRIM Support	true	false
RAID Support	false	false
S.M.A.R.T Support	true	false
Encryption Technology		-
Size and Dimensions	2.38 * 22.15 * 80.15 millimeter (mm)	-
Product Weight	8 gram (g)	-
LED Status Indicator	false	false

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Compare Msi Spatium M370 Nvme M2 128Gbwith Samsung PM991a NVMe M.2 512GB capacity

msi VS Samsung

Feature	Msi Spatium M370 Nvme M2 128Gb	Samsung PM991a NVMe M.2 512GB capacity
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions
Memory Capacity
Flash Memory Specifications
Controller		-
Sequential Read Speed	1800 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	560 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	false
Average Lifespan	1,500,000 hours (MTBF) / 75 Terabytes Written (TBW)	-
Power Consumption		-
NCQ Support	false	false
TRIM Support	true	false
RAID Support	false	false
S.M.A.R.T Support	true	false
Additional Features	Advanced LDPC ECC error correction algorithm / End-to-end (E2E) data protection during transmission / Pyrite feature for data encryption and security	-
Size and Dimensions	2.15 * 22 * 80 millimeter (mm)	-
LED Status Indicator	false	false

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Compare Samsung PM991a NVMe M.2 512GB capacitywith Verity Ascend S601 Sata 2 5 Inch 512Gb

Samsung VS Verity

Feature	Samsung PM991a NVMe M.2 512GB capacity	Verity Ascend S601 Sata 2 5 Inch 512Gb
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions		2.5 inch
Memory Capacity
Flash Memory Specifications
Sequential Read Speed	3100 megabytes per second (mb/s)	480 megabytes per second (mb/s)
Sequential Write Speed	1800 megabytes per second (mb/s)	420 megabytes per second (mb/s)
Random Read Speed		-
Random Write Speed		-
DRAM Memory	false	false
NCQ Support	false	false
TRIM Support	false	true
RAID Support	false	false
S.M.A.R.T Support	false	false
LED Status Indicator	false	false
Compatible Operating Systems	-	Windows XP and later / macOS / Linux

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Compare Hp Ex950 Nvme M2 2Tbwith Samsung PM991a NVMe M.2 512GB capacity

Hp VS Samsung

Feature	Hp Ex950 Nvme M2 2Tb	Samsung PM991a NVMe M.2 512GB capacity
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions
Memory Capacity	2 terabyte (tb)
Flash Memory Specifications
Controller		-
Sequential Read Speed	3500 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	2900 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	true	false
DRAM Memory Type		-
Operating Temperature Range		-
Average Lifespan	2,000,000 hours (MTBF) / 1400 Terabytes Written (TBW)	-
Power Consumption	6.93W in active mode / 0.73W in Idle mode	-
NCQ Support	true	false
TRIM Support	true	false
RAID Support	false	false
S.M.A.R.T Support	true	false
Compatible Operating Systems	Windows	-
Additional Features		-
Certifications and Approvals		-
Size and Dimensions	3.8 * 22 * 80 millimeter (mm)	-
Product Weight	5.4 gram (g)	-
LED Status Indicator	false	false

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Compare Emtec X150 Power Plus Sata 2 5 Inch 480Gbwith Samsung PM991a NVMe M.2 512GB capacity

Emtec VS Samsung

Feature	Emtec X150 Power Plus Sata 2 5 Inch 480Gb	Samsung PM991a NVMe M.2 512GB capacity
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions	2.5 inch
Memory Capacity
Flash Memory Specifications
Sequential Read Speed	560 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	520 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	false
Average Lifespan	2,000,000 (MTBF) hour (h)	-
NCQ Support	false	false
TRIM Support	true	false
RAID Support	false	false
S.M.A.R.T Support	true	false
Additional Features	ECC (Error Correction Code) Algorithm / Wear Leveling capability for increased memory lifespan / BBM algorithm for identifying and removing access errors / Over Provision capability for increasing write speed without performance reduction / Energy consumption optimizer	-
Size and Dimensions	7 * 69.85 * 100 millimeter (mm)	-
LED Status Indicator	-	false

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Compare Adata Legend 740 Nvme M2 500Gbwith Samsung PM991a NVMe M.2 512GB capacity

Adata VS Samsung

Feature	Adata Legend 740 Nvme M2 500Gb	Samsung PM991a NVMe M.2 512GB capacity
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions
Memory Capacity
Flash Memory Specifications
Sequential Read Speed	2400 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	1500 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	false
Operating Temperature Range	0 to 70 degrees Celsius	-
Average Lifespan	2,000,000 hours (MTBF) / 300 Terabytes Written (TBW)	-
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	false	false
Compatible Operating Systems		-
Certifications and Approvals		-
Size and Dimensions	3.13 × 22 × 80 mm with heatsink / 2.15 × 22 × 80 mm without heatsink	-
Product Weight	9g with heatsink ** 6.2g without heatsink	-
LED Status Indicator	false	false

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Compare Adata Ultimate Su800 Sata 25 Inch 2Tbwith Samsung PM991a NVMe M.2 512GB capacity

Adata VS Samsung

Feature	Adata Ultimate Su800 Sata 25 Inch 2Tb	Samsung PM991a NVMe M.2 512GB capacity
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions	2.5 inch
Memory Capacity	2 terabyte (tb)
Flash Memory Specifications
Controller		-
Sequential Read Speed	550 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	500 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	true	false
Operating Temperature Range		-
Average Lifespan	2,000,000 hours (MTTF) / 1,600 Terabytes Written (TBW)	-
NCQ Support	true	false
TRIM Support	true	false
RAID Support	true	false
S.M.A.R.T Support	true	false
Additional Features		-
Certifications and Approvals		-
Size and Dimensions	7 * 69.85 * 100.45 millimeter (mm)	-
Product Weight	47.5 gram (g)	-
LED Status Indicator	false	false

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Compare Biostar M700 Nvme M2 128Gbwith Samsung PM991a NVMe M.2 512GB capacity

Biostar VS Samsung

Feature	Biostar M700 Nvme M2 128Gb	Samsung PM991a NVMe M.2 512GB capacity
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions
Memory Capacity
Flash Memory Specifications
Controller		-
Sequential Read Speed	1800 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	500 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
DRAM Memory	false	false
Operating Temperature Range		-
Operating Voltage	3.3 volt (v)	-
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	false	false
Encryption Technology		-
Compatible Operating Systems	--- Operating System Compatibility Starts Here ---	-
Additional Features	End-to-End (E2E) Data Path Protection	-
Size and Dimensions	3.5 * 22 * 80 millimeter (mm)	-
Product Weight	25 gram (g)	-
LED Status Indicator	false	false
Random Read Speed	-
Random Write Speed	-

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