Page 11 from comparison Samsung PM991a NVMe M.2 512GB capacity

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

Feature	Kingmax Px4480 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	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) / 1200 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 Samsung PM991a NVMe M.2 512GB capacitywith Twinmos Alpha Pro Nvme M2 256Gb

Samsung VS Twinmos

Feature	Samsung PM991a NVMe M.2 512GB capacity	Twinmos Alpha Pro Nvme M2 256Gb
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)	2455 megabytes per second (mb/s)
Sequential Write Speed	1800 megabytes per second (mb/s)	1832 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	false
S.M.A.R.T Support	false	true
LED Status Indicator	false	false
Controller	-
Operating Temperature Range	-	0 to 70 degrees Celsius
Operating Voltage	-	3.3 volt (v)
Average Lifespan	-	1,500,000 (MTBF) hour (h)
Additional Features	-	Wear Leveling capability for increased memory lifespan / BBM algorithm for identifying and removing access errors
Size and Dimensions	-	2.2 * 22 * 80 millimeter (mm)

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Compare Gigabyte Gp Gsm2Ne3256Gntd Nvme M2 256Gbwith Samsung PM991a NVMe M.2 512GB capacity

GIGABYTE VS Samsung

Feature	Gigabyte Gp Gsm2Ne3256Gntd 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	1700 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	1100 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	1,500,000 hours (MTBF) / 300 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	HMB (Host Memory Buffer) technology for using a small part of system RAM as cache / Memory temperature display capability / SSD Tool Box software	-
Size and Dimensions	2.3 * 22 * 80 millimeter (mm)	-
LED Status Indicator	false	false

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Compare Msi Spatium M461 Nvme M2 1Tbwith Samsung PM991a NVMe M.2 512GB capacity

msi VS Samsung

Feature	Msi Spatium M461 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	3200 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	1,500,000 hours (MTBF) / 250 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 Crucial P2 Nvme M2 250Gbwith Samsung PM991a NVMe M.2 512GB capacity

Crucial VS Samsung

Feature	Crucial P2 Nvme M2 250Gb	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	2100 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	1150 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
DRAM Memory	false	false
Operating Temperature Range		-
Average Lifespan	1,500,000 hours (MTTF) / 150 Terabytes Written (TBW)	-
NCQ Support	false	false
TRIM Support	true	false
RAID Support	false	false
S.M.A.R.T Support	false	false
Certifications and Approvals		-
Size and Dimensions	2.4 * 22 * 80 millimeter (mm)	-
Product Weight	12 gram (g)	-
Random Read Speed	-
Random Write Speed	-
LED Status Indicator	-	false

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Compare Geil Zenith Z3 Sata 2 5 Inch 1Tbwith Samsung PM991a NVMe M.2 512GB capacity

Geil VS Samsung

Feature	Geil Zenith Z3 Sata 2 5 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	520 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	470 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
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)	-
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 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 Samsung Pm9A1 Nvme M2 256Gb

Samsung VS Samsung

Feature	Samsung PM991a NVMe M.2 512GB capacity	Samsung Pm9A1 Nvme M2 256Gb
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)	6400 megabytes per second (mb/s)
Sequential Write Speed	1800 megabytes per second (mb/s)	2700 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	true
NCQ Support	false	false
TRIM Support	false	true
RAID Support	false	false
S.M.A.R.T Support	false	false
LED Status Indicator	false	-
Controller	-
DRAM Memory Type	-
Certifications and Approvals	-
Size and Dimensions	-	2.38 * 22 * 80 millimeter (mm)

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Compare Pny Cs1031 Nvme M2 256Gbwith Samsung PM991a NVMe M.2 512GB capacity

PNY VS Samsung

Feature	Pny Cs1031 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	1700 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	1100 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
DRAM Memory	false	false
Operating Temperature Range		-
Average Lifespan	2,000,000 hours (MTBF) / 380 Terabytes Written (TBW)	-
NCQ Support	false	false
TRIM Support	true	false
RAID Support	false	false
S.M.A.R.T Support	true	false
Compatible Operating Systems	Windows / macOS	-
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	2 * 22 * 80 millimeter (mm)	-
Product Weight	6.6 gram (g)	-
LED Status Indicator	false	false
Random Read Speed	-
Random Write Speed	-

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Compare Kingmax Sa3080 Sata M2 512Gbwith Samsung PM991a NVMe M.2 512GB capacity

Kingmax VS Samsung

Feature	Kingmax Sa3080 Sata 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	540 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	480 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) / 310 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		-
Size and Dimensions	22 * 80 millimeter (mm)	-
Product Weight	8 gram (g)	-
LED Status Indicator	false	false

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Compare Kingmax Px3280 Nvme M2 512Gbwith Samsung PM991a NVMe M.2 512GB capacity

Kingmax VS Samsung

Feature	Kingmax Px3280 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	1750 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	950 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	true	false
Operating Temperature Range		-
Operating Voltage	3.3 volt (v)	-
Average Lifespan	2,000,000 (MTBF) hour (h)	-
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	22 * 80 millimeter (mm)	-
Product Weight	10 gram (g)	-
LED Status Indicator	-	false

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Compare Samsung PM991a NVMe M.2 512GB capacitywith Western Digital My Passport 512Gb

Samsung VS Western Digital

Feature	Samsung PM991a NVMe M.2 512GB capacity	Western Digital My Passport 512Gb
Memory Usage Type	Internal	External
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)	540 megabytes per second (mb/s)
Sequential Write Speed	1800 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	true
Connection Type	-	Type-C to Type-C USB 3.1 Gen 2
Operating Temperature Range	-
Encryption Technology	-
Compatible Operating Systems	-	Windows version 7 and later / macOS X
Additional Features	-
Body Material	-	Plastic
Size and Dimensions	-	10.2 * 45.7 * 88.9 millimeter (mm)
Product Weight	-	40 gram (g)
Box Contents	-	USB Type-C to USB Type-C cable / User manual

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Compare Adata Legend 850 Nvme M2 2Tbwith Samsung PM991a NVMe M.2 512GB capacity

Adata VS Samsung

Feature	Adata Legend 850 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	5000 MB/s (laptop, computer) / 4600 MB/s (PS5)	3100 megabytes per second (mb/s)
Sequential Write Speed	4500 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 (MTBF) hour (h)	-
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	true	false
Additional Features		-
Certifications and Approvals		-
Size and Dimensions	3.13 × 22 × 80 mm with heatsink / 2.15 × 22 × 80 mm without heatsink	-
Product Weight	8g with heatsink ** 7g without heatsink	-
LED Status Indicator	false	false

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