There are three SD formats: SDXC, SDHC, and SD. If you shoot video, you’ll most likely need an SDXC card, which is the newest type and has a maximum capacity of 2TB—which is huge. SDHC cards Zumo 660 – 4 GB micro SDHC car. dezl 560LT – 4 GB micro SDHC card. StreetPilot i3 – 2 GB Micro SD card. StreetPilot C3xx series – 2 GB SD card. (for devices with SD slot) StreetPilot 7xxx series – 2 GB SD card. StreetPilot 2610/50 – 1 GB Compact Flash card. StreetPilot III – 128 MB Garmin Datacard. In February, the company released the world's largest microSD card, with 128GB of storage in its tiny 15mm by 11mm body. As it launched its latest 512GB model, SanDisk touted the fact it had SanDisk 400GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-400G-GN6MA 4.7 out of 5 stars 368,209 3K+ bought in past month 256gb (only 238gb after formatting) only gives you ~19.75 hours of 4K recording time. There is a problem with your math. The ultra bandwidth requirement is 3 megabits per second. The correct formula is 238*8000/ (3*3600), which gives about 176 hours of recording time. This speed class 10, A1 card is the fastest booting micro SD card that we tested. It has strong application open times and great 4K reads and writes on the Raspberry Pi Zero. Read more below Hex editors are widely used in data recovery and computer forensics applications. When accessing the flash drive with WinHex, the total capacity seemed to exceed 1.9 terabytes. When we looked closely at the firmware, however, we found this device truly had only 32 gigabytes of storage space. If you purchase a 2TB flash drive for $20-40, here At the time of writing, (August 2017), the largest capacity MicroSD card available is 256GB. That is a significant amount of storage for something no larger than a fingernail! First a quick clarification. MicroSD is an older version of the standard that topped out at 2GB of storage. This current generation are technically MicroSDXC cards, but CeMIAT.