The external/desktop model has a 1-year warranty, slower than the internal, and can be easily plugged in to any USB port.
The internal drive has a 2-year warranty, has excellent performance (reads and writes over 150 MBytes/sec), but must be installed either inside a desktop computer or plugged in to a drive docking station.
We have used this IOGear USB-based Memory Card Reader/Writer for 6 years.
If your laptop computer does not have a built-in SD card reader, this is a convenient way to read photos taken by a digital camera.
Works with SD cards and MicroSD cards up to 128GB.
Samsung 850-EVO 1TB Solid State Drive for $300, and code EMCRJCG22 applies $20 off.
Normally about $328, so this deal saves about $48 on one of the best consumer-grade SSDs on the market.
Includes a 5-year warranty from Samsung.
The Western Digital "Black" 2TB is $110 today.
Their "Black" drives are some of the best consumer-grade drives they make, and includes a 5-year warranty.
This latest model (WD2003FZEX) normally sells for $120 to $130.