Photo_Buff Loc: San Francisco Bay Area

I installed a Samsung 1 TB SSD into my laptop. Form factor was a bit of an issue. It's definitely an improvement over the 256 GB stock SSD. I wouldn't put too much confidence into the MTBF data, they are pretty much a SWAG.

amfoto1 Loc: San Jose, Calif. USA

Like some others have responded, I recommend getting a handful of smaller cards and using one or several per day. Leave the images on the cards until you get home and can safely copy them off onto your computer. Just don't "put all your eggs in one basket (or two)" with one or two really large memory cards. By using a larger number of smaller cards, if anything happens... if the card fails or, far more likely, gets lost or goes through the a laundry in a pocket... you would only lose a limited number of images.

If you buy some cards for the trip, I HIGHLY recommend you test them well in advance. Put each in your camera, format it and do some test shots. Then do a trial download, check the images. Format the card again in your camera and repeat at least once. This is just to be certain the memory cards are working properly. In more than 20 years shooting digitally (15 years almost exclusively), I've probably used a couple hundred memory cards of various types and sizes... and only ever had two fail. One of those was "dead" right out of the package. The other failed after the very first use. That's why I always recommend giving them a short workout and test before doing any "serious" work with them.

Depending upon how important your images are to you, it may also be a good idea to back the cards up somehow... to a portable drive or a laptop or the "cloud" or whatever. If you decide to do some sort of backup, also test that well in advance of your trip, to be certain everything is working properly.

Regarding SSD (solid state drives)... They are fast! But they are also still pretty expensive compared to standard HD storage. And they should not be relied upon for long term storage of irreplaceable data. They are better now, after a few generations of improvements, but still don't have the data storage reliability of high quality, standard hard drives ("enterprise" class). This is from a friend of mine who's a design and manufacturing engineer at one of the largest makers of SSD and hard drives. He knows I'm a photographer and advises me not to trust SSD for photo storage.

GrandmaG Loc: Flat Rock, MI

I did not know that about SSD drives. You just saved me $$$ that I can spend on something else! I’ve been using a 1 TB Seagate Plus since 2015. It’s small in size and is still less than half full, even with all my pictures since 2015, my Lightroom catalog and Lightroom app on it. I was going to replace it with an SSD Drive when it got a little fuller, mainly because they are more durable for travel. However, that little Seagate has never failed me. I’ve had failures with WD drives.

Annie-when I travel light, I leave the laptop and HHD at home and use a tablet as backup (which stores the pics in the cloud, too).

Tomcat5133 Loc: Gladwyne PA

Good answers. I usually have a very light MacBook and external WD drive you can put in the palm of your hand.
What I never thought of was using my strong hotspot if where you are has good wifi you can send back your shots.
Not practical of you shooting raw and will have big files.
As said here the reliability of the cards today is amazing. i have never had one fail.
I switched to Sony mirrorless a long time ago and i am a Nikon fan for my years.
But when my "D800's were struggling mounting cards etc. It was one of the reasons I moved on.
Nikon did fix the software. The mirrorless is great to travel with. Good luck.