Transcend microSDXC/SDHC 300S vs SanDisk Extreme Pro CFexpress - Compare Memory Cards
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Transcend microSDXC/SDHC 300S | SanDisk Extreme Pro CFexpress |
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Transcend microSDXC/SDHC 300S
Transcend
SanDisk Extreme Pro CFexpress
SanDiskCountry of Origin | Taiwan | China | - |
---|---|---|---|
Dimension Depth | 0.04 in | 0.15 in (+ 1) | - |
Dimension Width | 0.59 in | 1.52 in (+ 1) | - |
Dimension Height | 0.43 in | 1.17 in (+ 1) | - |
Weight | 0.01 oz (+ 1) | - | - |
Color | White | Black | - |
Release Year | 2019 | - | - |
Warranty | 5 Year | Lifetime Limited | - |
Package Includes | Transcend microSDXC/SDHC 300S Memory Card | SanDisk Extreme Pro CFexpress | - |

Transcend microSDXC/SDHC 300S
Transcend
SanDisk Extreme Pro CFexpress
SanDiskFlash Memory Type |
3D NAND flash 2D NAND flash | XQD | - |
---|---|---|---|
File System | - | ExFAT | - |
Form Factor | MicroSDXC / SDHC | CFexpress | - |
Speed Class | UHS-I U3, UHS-I U1, Class 10, V30, A1 | - | - |
Memory Storage Capacity | 4 GB / 8 GB / 16 GB / 32 GB / 64 GB / 128 GB / 256 GB / 512 GB | 64 GB, 128 GB, 256 GB, 512 GB (+ 60) | - |
Read Speed |
512 GB: up to 100 MB/s 256 GB: up to 100 MB/s 128 GB: up to 100 MB/s 64 GB: up to 100 MB/s 32 GB: up to 100 MB/s 16 GB: up to 95 MB/s 8 GB: up to 20 MB/s 4 GB: up to 20 MB/s | Up to 1500 MB/s | - |
Write Speed |
512 GB: up to 85 MB/s 256 GB: up to 40 MB/s 128 GB: up to 40 MB/s 64 GB: up to 25 MB/s 32 GB: up to 25 MB/s 16 GB: up to 10 MB/s 8 GB: up to 10 MB/s 4 GB: up to 10 MB/s | Up to 800 MB/s | - |
Transfer Speeds | - | 1500 MB/s (+ 1500) | - |
Insertion/Removal Cycles | 10000 | - | - |
Certificate | CE / FCC / RCM / EAC | - | - |
Usage | Smart devices | - | - |
Operating Temperature | -25°C (-13°F) ~ 85°C (185°F) | -13 to 185°F/ -25 to 85°C | - |
Operating Voltage | 2.7 V ~ 3.6 V (+ 3) | - | - |

Transcend microSDXC/SDHC 300S
Transcend
SanDisk Extreme Pro CFexpress
SanDiskUltra Speed Data Transfer | Yes | Yes | - |
---|---|---|---|
A1 Performance | Yes | Yes | - |
Water-proof | Yes | Yes | - |
Temperature-proof | Yes | Yes | - |
X-ray-proof | Yes | Yes | - |
Shock-proof | Yes | Yes | - |
Magnetic-proof | Yes | Yes | - |
Dust-proof | Yes | Yes | - |
Adapter | No | No | - |
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