Specially designed for Delkin CFexpress™ Type A and Type B memory cards (POWER & BLACK), CardDoc™ identifies your card’s current health status, providing you with peace of mind regarding your card’s reliability. CardDoc™ can also quickly “sanitize” your card, clearing all memory cells and helping to ensure the highest level of performance.
CardDoc™ software is only compatible 1) with Delkin CFexpress™ Type A / B Memory Cards (POWER or BLACK) when used in a 2) Delkin CFexpress™ Type A / B Memory Card Reader (DDREADER-54 / DDREADER-56 / DDREADER-58 / DDREADER-60).
Do not mix-and-match: third-party memory cards with Delkin readers, or vice versa. Use of CardDoc™ software with these combinations can cause irreparable damage to the card / reader being used.
CardDoc™ “Sanitize” process should be utilized sparingly – overuse can risk premature card failure. The process will remove all data from the memory card and is irreversible. Make sure to back up data prior to use.
When it comes to flash memory data storage, data is segmented and stored in what are known as memory cells. Depending on the flash technology, each cell may hold multiple bits of data. Data is stored, and its accuracy verified via a storage controller which is included as part of the memory card. Filenames and start/stop locations (of where the data is located) are held in a File Allocation Table (FAT) separate from the main memory array. This information tells the device’s operating system (OS) what data belongs to which file. When a file is deleted from a memory card, the reference to that data is removed from the FAT, but the actual data remains in the memory cells.
Whenever power is applied to a memory card, the storage controller immediately starts scanning memory cells, comparing to the FAT to determine if the data in the memory cell is valid, or needs to be cleaned out of the memory cell. This cleanup process by the controller is called “garbage collection.” Garbage collection ensures that memory cells are completely cleared prior to writing new data to the cell. This background process adds a bit of processor “overhead,” using up a small portion of the memory controller’s bandwidth to handle some behind-the-scenes housekeeping.
Typical “quick” memory card formatting involves only erasing the FAT, leaving the contents of the main data storage area intact. “Low level” format, also known as Secure Erase or Sanitize, resets all memory locations in order to make sure that every memory location is cleared.
This deep type of formatting removes any pre-existing data and creates a new file system, providing a fresh, data-free card and in turn removing the storage controller overhead associated with “garbage collection”. Low-Level Formatting / Secure Erase / Sanitizing is a strong option for helping maintain optimum performance of your memory card.
It is important to note that low-level formatting is irreversible – always make sure to back up all photos and videos before using this sanitizing option. CardDoc™ “Sanitize” process should only be utilized sparingly – overuse can risk premature card failure.
Have questions regarding CardDoc™ or any other Delkin product? Please feel free to contact Delkin’s American-based customer support team.
| BLACK CFexpress™ Type A (4.0 VPG200) | DCA4BV2480 | DCA4BV2960 | |||
| BLACK CFexpress™ Type B (4.0 VPG400) | DCB4BV4512 | DCB4BV41T | DCB4BV42T | ||
| BLACK CFexpress™ Type B (4.0) | DCFX4B325 | DCFX4B650 | DCFX4B13T | ||
| POWER CFexpress™ Type B (4.0) | DCFX4P512 | DCFX4P1TB | DCFX4P2TB | ||
| POWER CFexpress™ Type B (G4) | DCFXBP128G4 | DCFXBP160G4 | DCFXBP256G4 | DCFXBP325G4 | DCFXBP512G4 |
| DCFXBP650G4 | DCFXBP1TBG4 | DCFXBP13TG4 | DCFXBP2TBG4 | ||
| Memory Card Readers | DDREADER-54 | DDREADER-56 | DDREADER-58 | DDREADER-60 |