Page 14 from comparison Samsung PM991a NVMe M.2 512GB capacity

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Compare Kingmax Px4480 Nvme M2 1Tbwith Samsung PM991a NVMe M.2 512GB capacity

Feature	Kingmax Px4480 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
Sequential Read Speed	5000 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	4400 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	2,000,000 hours (MTBF) / 600 Terabytes Written (TBW)	-
NCQ Support	true	false
TRIM Support	true	false
RAID Support	false	false
S.M.A.R.T Support	true	false
Additional Features		-
Size and Dimensions	22 * 80 millimeter (mm)	-
Product Weight	8.5 gram (g)	-
LED Status Indicator	false	false

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Compare Micron 2450 Nvme M2 256Gbwith Samsung PM991a NVMe M.2 512GB capacity

Micron VS Samsung

Feature	Micron 2450 Nvme 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	3500 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	1600 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 hours (MTBF) / 180 Terabytes Written (TBW)	-
Power Consumption	Less than 5500mW during use / Less than 400mW (Idle mode) / Less than 3mW during sleep	-
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	true	false
Encryption Technology		-
Additional Features	Energy loss protection	-
Size and Dimensions	22 * 42 millimeter (mm)	-
LED Status Indicator	false	false

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Compare Kingspec P4 240 240Gbwith Samsung PM991a NVMe M.2 512GB capacity

KingSpec VS Samsung

Feature	Kingspec P4 240 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
Controller		-
Sequential Read Speed	570 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
DRAM Memory	false	false
Operating Temperature Range	0 to 70 degrees Celsius	-
Operating Voltage	5 volt (v)	-
Average Lifespan	1,000,000 hours (MTBF) / 164 Terabytes Written (TBW)	-
Power Consumption	1.58W in active mode	-
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	true	false
Additional Features	Suitable for laptops and desktops / Usable in humid environments (5% to 95% humidity)	-
Size and Dimensions	7 * 70 * 100.4 millimeter (mm)	-
LED Status Indicator	false	false
Random Write Speed	-

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Compare Apacer As350 Panther 128Gbwith Samsung PM991a NVMe M.2 512GB capacity

Acer VS Samsung

Feature	Apacer As350 Panther 128Gb	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	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	1,500,000 hours (MTBF) / 75 Terabytes Written (TBW)	-
Power Consumption	1.26W in active mode / 0.32W in standby mode	-
NCQ Support	false	false
TRIM Support	true	false
RAID Support	false	false
S.M.A.R.T Support	true	false
Additional Features		-
Certifications and Approvals		-
Size and Dimensions	7 * 69.9 * 100 millimeter (mm)	-
Product Weight	59 gram (g)	-
LED Status Indicator	false	false

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Compare Apacer As350 Panther 240Gbwith Samsung PM991a NVMe M.2 512GB capacity

Acer VS Samsung

Feature	Apacer As350 Panther 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	560 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	1,500,000 hours (MTBF) / 140 Terabytes Written (TBW)	-
Power Consumption	1.45W in active mode / 0.32W in standby mode	-
NCQ Support	true	false
TRIM Support	true	false
RAID Support	false	false
S.M.A.R.T Support	true	false
Additional Features		-
Certifications and Approvals		-
Size and Dimensions	7 * 69.9 * 100 millimeter (mm)	-
Product Weight	59 gram (g)	-
LED Status Indicator	false	false

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Compare Apacer As722 Usb 3 2 Gen 512Gbwith Samsung PM991a NVMe M.2 512GB capacity

Acer VS Samsung

Feature	Apacer As722 Usb 3 2 Gen 512Gb	Samsung PM991a NVMe M.2 512GB capacity
Memory Usage Type	External	Internal
Connection Type	Type-C to Type-C USB 3.2 Gen 2	-
Memory Capacity
Flash Memory Specifications
Sequential Read Speed	1000 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	900 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Operating Temperature Range		-
Average Lifespan	2,000,000 (MTBF) hour (h)	-
Power Consumption	Max 4W in active mode / 1W in Idle mode	-
Compatible Operating Systems	Windows version 8.1 and later / macOS X version 10.6 and later / Linux Kernel 2.6 and later	-
Additional Features		-
Certifications and Approvals		-
Body Material	Aluminum	-
Size and Dimensions	12 * 36 * 122 millimeter (mm)	-
Product Weight	55 gram (g)	-
LED Status Indicator	false	false
Box Contents	USB Type-C to USB Type-C connection cable / USB Type-C to USB Type-A connection cable	-
Memory Connection Port	-
Storage Connection Details	-
Device Design and Dimensions	-
Random Read Speed	-
Random Write Speed	-
DRAM Memory	-	false
NCQ Support	-	false
TRIM Support	-	false
RAID Support	-	false
S.M.A.R.T Support	-	false

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Compare Adata Xpg Gammix S50 Nvme M2 1Tbwith Samsung PM991a NVMe M.2 512GB capacity

Adata VS Samsung

Feature	Adata Xpg Gammix S50 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	5000 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	4400 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	1,700,000 hours (MTBF) / 1,800 Terabytes Written (TBW)	-
Power Consumption	0.8W in active mode / 0.05W in standby mode	-
NCQ Support	false	false
TRIM Support	false	false
RAID Support	true	false
S.M.A.R.T Support	false	false
Encryption Technology		-
Additional Features		-
Certifications and Approvals		-
Size and Dimensions	6.1 * 22 * 80 millimeter (mm)	-
Product Weight	12 gram (g)	-
LED Status Indicator	false	false

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Compare Galexbit G500 120Gbwith Samsung PM991a NVMe M.2 512GB capacity

Galexbit VS Samsung

Feature	Galexbit G500 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
Sequential Read Speed	519 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	491 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
DRAM Memory	false	false
Average Lifespan	2,000,000 (MTBF) hour (h)	-
NCQ Support	true	false
TRIM Support	true	false
RAID Support	true	false
S.M.A.R.T Support	false	false
Additional Features		-
Size and Dimensions	7 * 69.85 * 100 millimeter (mm)	-
Product Weight	35 gram (g)	-
LED Status Indicator	false	false
Random Read Speed	-
Random Write Speed	-

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Compare Samsung 860 Pro 1Tbwith Samsung PM991a NVMe M.2 512GB capacity

Samsung VS Samsung

Feature	Samsung 860 Pro 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
Controller		-
Sequential Read Speed	560 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	530 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	5 volt (v)	-
Average Lifespan	1,500,000 hours (MTBF) / 1200 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	100 x 69.8 x 6.8 mm	-
Product Weight	60 gram (g)	-
LED Status Indicator	false	false

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Compare Adata Xpg S70 Blade Nvme M2 1Tbwith Samsung PM991a NVMe M.2 512GB capacity

Adata VS Samsung

Feature	Adata Xpg S70 Blade 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	7400 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	5500 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) / 740 Terabytes Written (TBW)	-
NCQ Support	false	false
TRIM Support	false	false
RAID Support	true	false
S.M.A.R.T Support	true	false
Encryption Technology		-
Certifications and Approvals		-
Size and Dimensions	3.3 × 22 × 80 mm (without heatsink) / 4.3 × 22 × 80 mm (with heatsink)	-
Product Weight	7g (without heatsink) ** 10g (with heatsink)	-
LED Status Indicator	-	false

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Compare Kingston M2 2280 Nvme 128Gbwith Samsung PM991a NVMe M.2 512GB capacity

Kingston VS Samsung

Feature	Kingston M2 2280 Nvme 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
Sequential Read Speed	2100 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
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	false	false
Product Weight	20 gram (g)	-
LED Status Indicator	false	false
Random Read Speed	-
Random Write Speed	-

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Compare Adata Su750 Sata 25 Inch 512Gbwith Samsung PM991a NVMe M.2 512GB capacity

Adata VS Samsung

Feature	Adata Su750 Sata 25 Inch 512Gb	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	520 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) / 400 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		-
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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