18-in-1 Multi-Memory Card Protective Case Keychain - Random Color

Pros: Hard case with two removable tray for MemoryStick cards and SecureDigital cards.
Each card bay is tightly fitted for secure storing of each memory card.
The MemoryStick tray contains 3 main bays.
- Bottom bay fits 3 cards: 1 Full size MS (top) and, 1 Duo and 1 M2 card (bottom):
- Upper left bay fits 2 cards: 1 Duo stick (top) and 1 sim card (bottom).
- Upper right bay fits 3 cards: 1 Duo stick (top) and, 2 M2 cards (bottom).
The MemoryStick tray supports a total of 3 M2 cards, 3 Duo sticks, 1 full size stick and 1 sim card.
The SecureDigital tray contains 4 main bays:
- Upper left bay fits 3 cards: 1 SD card (top) and 2 TF cards (bottom).
- Upper right bay fits 2 cards: 1 miniSD card (top) and 1 sim card (bottom).
- Lower left bay fits 2 cards: 1 miniSD card (top) and 1 TF card (bottom).
- Lower right bay fits 2 cards> 1 SD card (top) and 1 miniSD card (bottom).
The SecureDigital tray supports a total of 2 SD cards, 3 miniSD cards, 3 TF cards and 1 sim card.

Cons: - Not usable for SmartMedia and xD cards.
- You have to buy 2 cases to get the most out of a case, if you only use MemoryStick or SecureDigital cards.

Other: Unless you use xD cards, buy it!
If you only use one type, buy two cases, swap the trays, and archive the the useless case in the trash can. It is still cheaper than other options.

Pros: bigger plastic case for (micro/mini) SD cards and M2/Duo/Memorysticks.
One half is for SD, the other half for MS.
There are multiple compartments for different cards.
handy to store many cards with relatively small space

Cons: too big for a keychain
relatively cheap plastic clip holding toghether the halfs

Other: I was not sure if I needed this.
But in the end it is a good solution to consolidate many memory cards.
It takes ip less space then to store each memory card in its own plastic casing.
also great to combine with adapters.
Eg 3 TF cards + micro2mini2sd card adapter + MS pro duo TF adapter + MS pro duo 2 MS adapter + 3in1 (usb reader, sdcard and tf slot)

Pros: It is handy for keeping lots of different memory cards together in one case.

Cons: Not the best build quality as it's just hard plastic and the slots aren't a perfect fit for some of the cards. Afraid I might damage the memory card when inserting or removing from the individual sections as some are too tight.

Other: Handy for keeping lots of different memory cards together, but wouldn't recommend dangling the case just on the keychain, but safer to keep in your bag.