Page 8 from comparison Samsung PM991a NVMe M.2 512GB capacity

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Compare Biostar S100 Sata 2 5 256Gbwith Samsung PM991a NVMe M.2 512GB capacity

Feature	Biostar S100 Sata 2 5 256Gb	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	540 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	460 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
DRAM Memory	false	false
Operating Temperature Range		-
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	false	false
Compatible Operating Systems	--- Operating System Compatibility Starts Here ---	-
Size and Dimensions	7mm thickness	-
Product Weight	36 gram (g)	-
Random Read Speed	-
Random Write Speed	-
LED Status Indicator	-	false

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Compare Samsung PM991a NVMe M.2 512GB capacitywith Western Digital Black Sn850X Nvme M2 2Tb

Samsung VS Western Digital

Feature	Samsung PM991a NVMe M.2 512GB capacity	Western Digital Black Sn850X Nvme M2 2Tb
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	3100 megabytes per second (mb/s)	7300 megabytes per second (mb/s)
Sequential Write Speed	1800 megabytes per second (mb/s)	6600 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
Operating Temperature Range	-
Average Lifespan	-	1200 (TBW) terabyte (tb)
Compatible Operating Systems	-	Supports Windows 8.1 and later
Additional Features	-	Compatible with PlayStation® 5 / WD Black SSD Dashboard software with Gaming Mode support
Certifications and Approvals	-
Size and Dimensions	-	2.38 * 22 * 80 millimeter (mm)
Product Weight	-	5.5 gram (g)

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Compare Samsung PM991a NVMe M.2 512GB capacitywith Xpg Sx6000 Pro Pcie Gen3X4 M2 2280 256Gb

Samsung VS Xpg

Feature	Samsung PM991a NVMe M.2 512GB capacity	Xpg Sx6000 Pro Pcie Gen3X4 M2 2280 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)	2100 megabytes per second (mb/s)
Sequential Write Speed	1800 megabytes per second (mb/s)	1200 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	true
S.M.A.R.T Support	false	true
LED Status Indicator	false	false
Controller	-
Operating Temperature Range	-
Average Lifespan	-	2,000,000 hours (MTBF) / 150 Terabytes Written (TBW)
Power Consumption	-
Additional Features	-
Certifications and Approvals	-
Size and Dimensions	-	2.15 * 22 * 80 millimeter (mm)
Product Weight	-	8 gram (g)

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Compare Netac Z Slim Usb 3 2 1Tbwith Samsung PM991a NVMe M.2 512GB capacity

Netac VS Samsung

Feature	Netac Z Slim Usb 3 2 1Tb	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-C USB 3.2 Gen 2	-
Memory Capacity	1 terabyte (tb)
DRAM Memory	false	false
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	false	false
Compatible Operating Systems	Windows 7 and later / macOS	-
Additional Features	550 MB/s data transfer speed	-
Body Material	Metal	-
Size and Dimensions	9 * 29 * 100 millimeter (mm)	-
Product Weight	30 gram (g)	-
LED Status Indicator	false	false
Memory Connection Port	-
Storage Connection Details	-
Flash Memory Specifications	-
Sequential Read Speed	-	3100 megabytes per second (mb/s)
Sequential Write Speed	-	1800 megabytes per second (mb/s)
Random Read Speed	-
Random Write Speed	-

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Compare Aigo P2000 Nvme M2 128Gbwith Samsung PM991a NVMe M.2 512GB capacity

Aigo VS Samsung

Feature	Aigo P2000 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
Sequential Read Speed	2000 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	1400 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
Compatible Operating Systems	Windows 7 and later / macOS version 10.6 and later	-
Size and Dimensions	2.1 * 22 * 80 millimeter (mm)	-
Product Weight	5 gram (g)	-
Flash Memory Specifications	-
Random Read Speed	-
Random Write Speed	-
LED Status Indicator	-	false

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Compare Adata Legend 960 Max Nvme M2 1Tbwith Samsung PM991a NVMe M.2 512GB capacity

Adata VS Samsung

Feature	Adata Legend 960 Max 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	7400 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	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		-
Size and Dimensions	10.65 × 23.2 × 80.6 mm (with heatsink) / 3.3 × 22 × 80 mm (without heatsink)	-
Product Weight	36.6g (with heatsink) ** 7.3g (without heatsink)	-
LED Status Indicator	false	false

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Compare Adata Legend 960 Max Nvme M2 2Tbwith Samsung PM991a NVMe M.2 512GB capacity

Adata VS Samsung

Feature	Adata Legend 960 Max 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	7400 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	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		-
Size and Dimensions	10.65 × 23.2 × 80.6 mm (with heatsink) / 3.3 × 22 × 80 mm (without heatsink)	-
Product Weight	36.6g (with heatsink) ** 7.3g (without heatsink)	-
LED Status Indicator	false	false

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Compare Samsung Pm1653 Sas 25 Inch 192Tbwith Samsung PM991a NVMe M.2 512GB capacity

Samsung VS Samsung

Feature	Samsung Pm1653 Sas 25 Inch 192Tb	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	1.92 terabyte (tb)
Flash Memory Specifications
Controller		-
Sequential Read Speed	4300 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	3800 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
TRIM Support	-	false
RAID Support	-	false
S.M.A.R.T Support	-	false
LED Status Indicator	-	false

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Compare Samsung PM991a NVMe M.2 512GB capacitywith Samsung T5 Evo Usb 32 Gen 1 8Tb

Samsung VS Samsung

Feature	Samsung PM991a NVMe M.2 512GB capacity	Samsung T5 Evo Usb 32 Gen 1 8Tb
Memory Usage Type	Internal	External
Memory Connection Port		-
Storage Connection Details		-
Device Design and Dimensions		-
Memory Capacity		8 terabyte (tb)
Flash Memory Specifications
Sequential Read Speed	3100 megabytes per second (mb/s)	460 megabytes per second (mb/s)
Sequential Write Speed	1800 megabytes per second (mb/s)	460 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 3.2 Gen 1
Operating Temperature Range	-
Encryption Technology	-
Compatible Operating Systems	-
Additional Features	-	Compatible with Samsung Magician software / UASP mode support
Certifications and Approvals	-
Size and Dimensions	-	17 * 40 * 95 millimeter (mm)
Product Weight	-	102 gram (g)
Box Contents	-	Type C to Type C Cable / User Manual

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Compare Samsung PM991a NVMe M.2 512GB capacitywith Western Digital Blue Wds500G1B0A 500Gb

Samsung VS Blu

Feature	Samsung PM991a NVMe M.2 512GB capacity	Western Digital Blue Wds500G1B0A 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)	545 megabytes per second (mb/s)
Sequential Write Speed	1800 megabytes per second (mb/s)	525 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	true
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	-
Additional Features	-
Certifications and Approvals	-
Size and Dimensions	-	7 x 69.85 x 100.5 mm
Product Weight	-	37.4 gram (g)

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Compare Gigabyte M30 Nvme M2 1Tbwith Samsung PM991a NVMe M.2 512GB capacity

GIGABYTE VS Samsung

Feature	Gigabyte M30 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	3500 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	3000 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) / 650 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	SLC Cache support for increased write speed / Advanced LDPC ECC Algorithm / SSD Tool box software	-
Certifications and Approvals		-
Size and Dimensions	2.3 * 22 * 80 millimeter (mm)	-
LED Status Indicator	false	false

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Compare Kingmax Smp25 64Gbwith Samsung PM991a NVMe M.2 512GB capacity

Kingmax VS Samsung

Feature	Kingmax Smp25 64Gb	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
Sequential Read Speed	200 megabytes per second (mb/s)	3100 megabytes per second (mb/s)
Sequential Write Speed	70 megabytes per second (mb/s)	1800 megabytes per second (mb/s)
Random Read Speed
Random Write Speed
DRAM Memory	false	false
Average Lifespan	1,200,000 (MTBF) hour (h)	-
NCQ Support	false	false
TRIM Support	false	false
RAID Support	false	false
S.M.A.R.T Support	false	false
Size and Dimensions	7 * 69.85 * 100 millimeter (mm)	-
Product Weight	100 gram (g)	-
LED Status Indicator	false	false
Flash Memory Specifications	-

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