Page 7 from comparison Samsung Pm991 Nvme M2 256Gb

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Compare Samsung Pm991 Nvme M2 256Gbwith Toshiba Canvio Ready USB 3.2 4TB capacity

Feature	Samsung Pm991 Nvme M2 256Gb	Toshiba Canvio Ready USB 3.2 4TB capacity
Memory Usage Type	Internal	External
Memory Connection Port		-
Storage Connection Details		-
Device Design and Dimensions		2.5 inch
Memory Capacity		4 terabyte (tb)
Sequential Read Speed	2050 megabytes per second (mb/s)	-
Sequential Write Speed	1000 megabytes per second (mb/s)	-
Random Read Speed		-
Random Write Speed		-
DRAM Memory	false	false
Operating Voltage		-
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
Connection Type	-	Micro-B to Type-A USB 3.2 Gen 1
Compatible Operating Systems	-	Windows 8.1 and later / macOS version 10.13 and later
Additional Features	-	NTFS / 5 Gbps data transfer speed
Size and Dimensions	-	19.5 * 78 * 109 millimeter (mm)
Product Weight	-	2175 gram (g)

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Compare Crucial Bx500 Sata 2 5 Inch 2Tbwith Samsung Pm991 Nvme M2 256Gb

Crucial VS Samsung

Feature	Crucial Bx500 Sata 2 5 Inch 2Tb	Samsung Pm991 Nvme M2 256Gb
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	540 megabytes per second (mb/s)	2050 megabytes per second (mb/s)
Sequential Write Speed	500 megabytes per second (mb/s)	1000 megabytes per second (mb/s)
DRAM Memory	false	false
Operating Temperature Range		-
Average Lifespan	1,500,000 hours (MTTF) / 720 Terabytes Written (TBW)	-
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	9 * 95 * 125 millimeter (mm)	-
Product Weight	70 gram (g)	-
Random Read Speed	-
Random Write Speed	-
Operating Voltage	-
LED Status Indicator	-	false

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Compare Samsung Pm991 Nvme M2 256Gbwith Seagate Xbox Series 512Gb

Samsung VS Microsoft

Feature	Samsung Pm991 Nvme M2 256Gb	Seagate Xbox Series 512Gb
Memory Usage Type	Internal	External
Memory Connection Port
Storage Connection Details		Proprietary Port
Device Design and Dimensions
Memory Capacity
Sequential Read Speed	2050 megabytes per second (mb/s)	-
Sequential Write Speed	1000 megabytes per second (mb/s)	-
Random Read Speed		-
Random Write Speed		-
DRAM Memory	false	false
Operating Voltage		-
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
Additional Features	-	Compatible with Xbox Series X and S consoles / Xbox Velocity architecture for increased storage speed
Size and Dimensions	-	5 * 76 * 139 millimeter (mm)
Product Weight	-	68 gram (g)

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Compare Lexar Ns100 512Gbwith Samsung Pm991 Nvme M2 256Gb

Lexar VS Samsung

Feature	Lexar Ns100 512Gb	Samsung Pm991 Nvme M2 256Gb
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions	2.5 inch
Memory Capacity
Sequential Read Speed	550 megabytes per second (mb/s)	2050 megabytes per second (mb/s)
DRAM Memory	false	false
Operating Temperature Range		-
Average Lifespan	256 (TBW) terabyte (tb)	-
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 * 69.85 * 100.2 millimeter (mm)	-
Product Weight	34 gram (g)	-
LED Status Indicator	false	false
Sequential Write Speed	-	1000 megabytes per second (mb/s)
Random Read Speed	-
Random Write Speed	-
Operating Voltage	-

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Compare Samsung Pm991 Nvme M2 256Gbwith Samsung PM991a NVMe M.2 512GB capacity

Samsung VS Samsung

Feature	Samsung Pm991 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
Sequential Read Speed	2050 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	1000 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	false
Operating Voltage		-
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
Flash Memory Specifications	-

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Compare Samsung Pm991 Nvme M2 256Gbwith Silicon Power P34A80 NVMe M.2 512GB capacity

Samsung VS Silicon Power

Feature	Samsung Pm991 Nvme M2 256Gb	Silicon Power P34A80 NVMe M.2 512GB capacity
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions
Memory Capacity
Sequential Read Speed	2050 megabytes per second (mb/s)	3400 megabytes per second (mb/s)
Sequential Write Speed	1000 megabytes per second (mb/s)	3000 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	true
Operating Voltage		-
NCQ Support	false	false
TRIM Support	false	true
RAID Support	false	true
S.M.A.R.T Support	false	true
LED Status Indicator	false	false
Flash Memory Specifications	-
Controller	-
DRAM Memory Type	-
Operating Temperature Range	-
Average Lifespan	-	1655 (TBW) terabyte (tb)
Compatible Operating Systems	-	Windows 8.1 and later
Additional Features	-
Certifications and Approvals	-
Size and Dimensions	-	3.5 * 22 * 80 millimeter (mm)
Product Weight	-	8 gram (g)

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Compare Samsung Pm991 Nvme M2 256Gbwith Western Digital Blue Wds250G2B0A 250Gb

Samsung VS Blu

Feature	Samsung Pm991 Nvme M2 256Gb	Western Digital Blue Wds250G2B0A 250Gb
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions		2.5 inch
Memory Capacity
Sequential Read Speed	2050 megabytes per second (mb/s)	550 megabytes per second (mb/s)
Sequential Write Speed	1000 megabytes per second (mb/s)	525 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	false
Operating Voltage		-
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
Flash Memory Specifications	-
Operating Temperature Range	-	0 to 70 degrees Celsius
Average Lifespan	-	1,750,000 (MTTF) hour (h)
Power Consumption	-
Additional Features	-
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 983 DCT NVMe M.2 960GB capacitywith Samsung Pm991 Nvme M2 256Gb

Samsung VS Samsung

Feature	Samsung 983 DCT NVMe M.2 960GB capacity	Samsung Pm991 Nvme M2 256Gb
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions
Memory Capacity
Flash Memory Specifications		-
Controller		-
Sequential Read Speed	3000 megabytes per second (mb/s)	2050 megabytes per second (mb/s)
Sequential Write Speed	1200 megabytes per second (mb/s)	1000 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) / 1366 Terabytes Written (TBW)	-
Power Consumption	8W in active mode / 2.6W in Idle mode	-
NCQ Support	false	false
TRIM Support	true	false
RAID Support	false	false
S.M.A.R.T Support	true	false
Encryption Technology		-
Certifications and Approvals		-
Size and Dimensions	110.2 x 22 x 38 mm	-
Product Weight	20 gram (g)	-
Operating Voltage	-
LED Status Indicator	-	false

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Compare Samsung 860 Pro 512Gbwith Samsung Pm991 Nvme M2 256Gb

Samsung VS Samsung

Feature	Samsung 860 Pro 512Gb	Samsung Pm991 Nvme M2 256Gb
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	560 megabytes per second (mb/s)	2050 megabytes per second (mb/s)
Sequential Write Speed	530 megabytes per second (mb/s)	1000 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) / 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	100 x 69.8 x 6.8 mm	-
Product Weight	51 gram (g)	-
LED Status Indicator	false	false

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Compare Pny Cs3040 Nvme M2 4Tbwith Samsung Pm991 Nvme M2 256Gb

PNY VS Samsung

Feature	Pny Cs3040 Nvme M2 4Tb	Samsung Pm991 Nvme M2 256Gb
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions
Memory Capacity	4 terabyte (tb)
Flash Memory Specifications		-
Sequential Read Speed	5600 megabytes per second (mb/s)	2050 megabytes per second (mb/s)
Sequential Write Speed	3900 megabytes per second (mb/s)	1000 megabytes per second (mb/s)
DRAM Memory	true	false
Operating Temperature Range		-
Average Lifespan	2,000,000 hours (MTBF) / 6800 Terabytes Written (TBW)	-
NCQ Support	false	false
TRIM Support	true	false
RAID Support	true	false
S.M.A.R.T Support	true	false
Encryption Technology		-
Compatible Operating Systems	Windows 7 and later	-
Additional Features	ECC (Error Correction Code) Algorithm / APST, ASPM, L1.2 power saving optimizer / End-to-End (E2E) Data Path Protection / PNY PCIe SSD Toolbox software	-
Certifications and Approvals		-
Size and Dimensions	4 * 22 * 80 millimeter (mm)	-
Product Weight	6.6 gram (g)	-
LED Status Indicator	false	false
Random Read Speed	-
Random Write Speed	-
Operating Voltage	-

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Compare Samsung Pm991 Nvme M2 256Gbwith TwinMOS SATA M.2 128GB capacity

Samsung VS Twinmos

Feature	Samsung Pm991 Nvme M2 256Gb	TwinMOS SATA M.2 128GB capacity
Memory Usage Type	Internal	Internal
Memory Connection Port
Storage Connection Details
Device Design and Dimensions
Memory Capacity
Sequential Read Speed	2050 megabytes per second (mb/s)	580 megabytes per second (mb/s)
Sequential Write Speed	1000 megabytes per second (mb/s)	550 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	false
Operating Voltage		3.3 volt (v)
NCQ Support	false	false
TRIM Support	false	true
RAID Support	false	false
S.M.A.R.T Support	false	true
LED Status Indicator	false	false
Flash Memory Specifications	-
Controller	-
Operating Temperature Range	-
Average Lifespan	-	1,500,000 hours (MTBF) / 125 Terabytes Written (TBW)
Compatible Operating Systems	-	Windows XP and later / macOS version 10.1 and later / Linux version 2.4 and later
Additional Features	-
Certifications and Approvals	-
Size and Dimensions	-	3.5 * 22 * 80 millimeter (mm)
Product Weight	-	10 gram (g)

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Compare Samsung PM893 SATA 2.5 Inch 480GB capacitywith Samsung Pm991 Nvme M2 256Gb

Samsung VS Samsung

Feature	Samsung PM893 SATA 2.5 Inch 480GB capacity	Samsung Pm991 Nvme M2 256Gb
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)	2050 megabytes per second (mb/s)
Sequential Write Speed	520 megabytes per second (mb/s)	1000 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	false
Operating Temperature Range	0 to 70 degrees Celsius	-
Operating Voltage	5 volt (v)
Average Lifespan	2,000,000 (MTBF) hour (h)	-
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		-
Size and Dimensions	6.8 * 69.85 * 100 millimeter (mm)	-
Product Weight	70 gram (g)	-
LED Status Indicator	false	false

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