Page 54 from comparison Samsung PM991a NVMe M.2 512GB capacity

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Compare Samsung 960 Pro 512Gbwith Samsung PM991a NVMe M.2 512GB capacity

Feature	Samsung 960 Pro 512Gb	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	3500 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	2100 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	1,500,000 hours (MTBF) / 400 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	8.3 gram (g)	-
LED Status Indicator	false	false

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Compare Kingston Ssdnow Uv400 120Gbwith Samsung PM991a NVMe M.2 512GB capacity

Kingston VS Samsung

Feature	Kingston Ssdnow Uv400 120Gb	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
Controller		-
Sequential Read Speed	550 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	350 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	false
Operating Temperature Range		-
Average Lifespan	1,000,000 hours (MTBF) / 50 Terabytes Written (TBW)	-
Power Consumption	0.59W in read mode / 2.515W in write mode / 0.693W on average / 0.672W in standby mode	-
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	false	false
Additional Features		-
Size and Dimensions	7 * 69.9 * 100 millimeter (mm)	-
Product Weight	57 gram (g)	-
LED Status Indicator	false	false
Box Contents	Special case for using memory as external storage / 7mm to 9.5mm spacer for increasing SSD height / 3.5-inch bracket for case installation / USB cable / SATA cable / Data cable / Serial number for downloading Acronis Data Migration software	-

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Compare Samsung PM991a NVMe M.2 512GB capacitywith Western Digital Black Sn770 Nvme M2 1Tb

Samsung VS Western Digital

Feature	Samsung PM991a NVMe M.2 512GB capacity	Western Digital Black Sn770 Nvme M2 1Tb
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions
Memory Capacity		1 terabyte (tb)
Flash Memory Specifications
Sequential Read Speed	3100 megabytes per second (mb/s)	5150 megabytes per second (mb/s)
Sequential Write Speed	1800 megabytes per second (mb/s)	4900 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
Operating Temperature Range	-
Average Lifespan	-	- 600 (TBW) terabyte (tb)
Compatible Operating Systems	-	Windows 8.1 and later
Additional Features	-	WD Black SSD Dashboard software with Gaming Mode support
Size and Dimensions	-	2.38 * 22 * 80 millimeter (mm)
Product Weight	-	5.5 gram (g)

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Compare Lacie Sthk2000800 2Tbwith Samsung PM991a NVMe M.2 512GB capacity

Lacie VS Samsung

Feature	Lacie Sthk2000800 2Tb	Samsung PM991a NVMe M.2 512GB capacity
Memory Usage Type	External	Internal
Device Design and Dimensions	2.5 inch
Connection Type	Type-C to Type-A USB 3.1 Gen 2	-
Memory Capacity	2 terabyte (tb)
Sequential Read Speed	540 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
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	false	false
Size and Dimensions	10.2 * 78.7 * 94 millimeter (mm)	-
Product Weight	90 gram (g)	-
LED Status Indicator	true	false
Box Contents	USB Type-C to USB Type-A cable / User manual	-
Memory Connection Port	-
Storage Connection Details	-
Flash Memory Specifications	-
Random Read Speed	-
Random Write Speed	-

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Compare Pioneer Aps Se20G Pcie M2 256Gbwith Samsung PM991a NVMe M.2 512GB capacity

Pioneer VS Samsung

Feature	Pioneer Aps Se20G Pcie M2 256Gb	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	3400 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	1200 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Random Read Speed
DRAM Memory	false	false
Operating Temperature Range		-
Average Lifespan	300 (TBW) terabyte (tb)	-
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	false	false
Size and Dimensions	2 * 22 * 80 millimeter (mm)	-
Product Weight	10 gram (g)	-
LED Status Indicator	false	false
Random Write Speed	-

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Compare Corsair Mp600 Gs Nvme M2 500Gbwith Samsung PM991a NVMe M.2 512GB capacity

Corsair VS Samsung

Feature	Corsair Mp600 Gs 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	4800 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	3500 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	1,500,000 hours (MTBF) / 300 Terabytes Written (TBW)	-
Power Consumption	Max 4.1W when in use	-
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	true	false
Additional Features		-
Product Weight	340 gram (g)	-
LED Status Indicator	false	false

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Compare Apacer As2280P4 Nvme M2 512Gbwith Samsung PM991a NVMe M.2 512GB capacity

Acer VS Samsung

Feature	Apacer As2280P4 Nvme M2 512Gb	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	2100 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		-
Operating Voltage	3.3 volt (v)	-
Average Lifespan	1,500,000 hours (MTBF) / 350 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
Certifications and Approvals		-
Size and Dimensions	2.38 * 22 * 80 millimeter (mm)	-
Product Weight	6.8 gram (g)	-
LED Status Indicator	false	false

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Compare Gudga Sata 25 Inch 1Tbwith Samsung PM991a NVMe M.2 512GB capacity

Gudga VS Samsung

Feature	Gudga Sata 25 Inch 1Tb	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	1 terabyte (tb)
Flash Memory Specifications
Sequential Read Speed	570 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	540 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	5 volt (v)	-
Average Lifespan	1,000,000 (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	Advanced LDPC error correction algorithm / Usable for laptops and PCs / 0.07ms access time	-
Certifications and Approvals		-
Body Material	Plastic	-
Size and Dimensions	7 * 70 * 100 millimeter (mm)	-
LED Status Indicator	false	false

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Compare Oscoo On900 Nvme M2 2Tbwith Samsung PM991a NVMe M.2 512GB capacity

Oscoo VS Samsung

Feature	Oscoo On900 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
Sequential Read Speed	2600 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	1700 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
Certifications and Approvals		-
Size and Dimensions	4.1 * 22 * 80 millimeter (mm)	-
LED Status Indicator	false	false
Random Read Speed	-
Random Write Speed	-

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Compare Samsung PM991a NVMe M.2 512GB capacitywith Silicon Power V85 480Gb

Samsung VS Silicon Power

Feature	Samsung PM991a NVMe M.2 512GB capacity	Silicon Power V85 480Gb
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)	530 megabytes per second (mb/s)
Sequential Write Speed	1800 megabytes per second (mb/s)	510 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	false
NCQ Support	false	true
TRIM Support	false	true
RAID Support	false	true
S.M.A.R.T Support	false	true
LED Status Indicator	false	false
Average Lifespan	-	2,500,000 (MTBF) hour (h)
Additional Features	-
Size and Dimensions	-	7 * 69.85 * 100 millimeter (mm)
Product Weight	-	63 gram (g)

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Compare Msi Spatium M480 Play Nvme M2 2Tbwith Samsung PM991a NVMe M.2 512GB capacity

msi VS Samsung

Feature	Msi Spatium M480 Play 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	7000 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	6800 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	true	false
DRAM Memory Type	DDR4 with 2GB cache memory	-
Operating Temperature Range	0 to 70 degrees Celsius	-
Average Lifespan	1,600,000 hours (MTBF) / 1400 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		-
Additional Features	Advanced LDPC ECC Algorithm / End-to-End (E2E) Data Path Protection	-
Size and Dimensions	2.15 * 22 * 80 millimeter (mm)	-
Product Weight	9.7 gram (g)	-
LED Status Indicator	false	false

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Compare Adata Ultimate Su655 240Gbwith Samsung PM991a NVMe M.2 512GB capacity

Adata VS Samsung

Feature	Adata Ultimate Su655 240Gb	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	520 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	450 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	false
Operating Temperature Range		-
Average Lifespan	2,000,000 hours (MTBF) / 140 Terabytes Written (TBW)	-
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	false	false
Additional Features		-
Size and Dimensions	100.45 * 69.85 * 7 millimeter (mm)	-
Product Weight	47.5 gram (g)	-
LED Status Indicator	true	false

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