external case for MBA 2012 SSD, NGFF??

[minvoyager]

After removing the 256GB SSD from my 2012 MacBook Air, I want an external case to house it, so I can use it as an external drive. I've searched eBay, and there are external cases what refer to NGFF.


I Googled the following, which seems to be what I need, but I wanted to get something from ebay, rather than purchasing directly from China. I assume that the required information I need is contained in the writing below that I copied from the Chinese website, but can someone let me know what information is relevant.
____

Hence, I want to know what details I have to specify, so that it will work with the SSD that comes out of the 2012 MacBook Air 11".

http://eshop.sintech.cn/usb-30-external-2012-macbook-air-md223224-md231232-ssd-case-p-862.html

Name:USB 3.0 external 2012 MACBOOK AIR MD223-224 MD231-232 ssd case
ModelA-U3MC2012
PA-U3MC2012 USB 3.0 external 2012 APPLE MACBOOK AIR MD224 MD223 MD231 MD232 7+17pin ssd case is used to reuse your 2012 MACBOOK air SSD as external HDD .
1. only fit for 17+7 pins 2012 MacBook Air SSD which is mainly used in A1466 - 13-inch (MD231, MD232), A1465 - 11-inch (MD223, MD224)
Pls don't insert 2010/2011 macbook air SSD which mainly used in macbook Air A1369 A1370 (MC503 MC504 MC505 MC506) MC965 MC966 MC968 MC969.
Package included :

2012 MacBook PRO SSD USB 3.0 case

Compatible SSD from Macbook Model
2012 Macbook Pro A1398(Model NO) Â MC975 MC976(Order NO)

Product Feature
Install MacBook SSD in this adapter as external HDD

 

[xylitol]

NGFF is not relevant here unless you want to replace the SSD with an M.2 SATA SSD.

That Chinese website has confusing package information, and how come the internal SSD becomes an external HDD?

Anyway, relevant, in addition to the obvious: MD223/224, 17+7 pins (alternatively 7+17; sometimes expressed as 18+8/8+18)

For example:
http://www.ebay.com/itm/USB-3-0-External-2012-MACBOOK-AIR-MD223-224-MD231-232-SSD-Case-/291780695182

 

[KhunJay]

Anyway, relevant, in addition to the obvious: MD223/224, 17+7 pins (alternatively 7+17; sometimes expressed as 18+8/8+18)

This confused as I was researching online....is it 7+17 or 8+18?

How can it be both?

 

[KhunJay]

A....can someone let me know what information is relevant.
/QUOTE]

Just search "USB3.0 ENCLOSURE FOR MACBOOK AIR 2012 SSD" on eBay and amazon