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Your cart is empty.Portable microSD/SD flash memory duplicator SD300 copies from one source to two targets simultaneously. Simply power on, then press one button to start copying. Progress (percentage completed) can be monitored on screen. SD300 also comes with utilities to format and diagnose your SD/microSD cards. Compatible with SDHC. Lasts 4 hours copying or 10 hours standby when powered by AA batteries. Package includes SD300, power cord, user guide, and 3 microSD-to-fullsized-SD card adapters. Dimensions 1in X 5.25 in X 3.5 in
James81
2025-08-19 18:15:05
I was looking for an easy way to duplicate Raspberry Pi images and this works perfectly for that purpose. I'm able to easily backup and create exact copies of my many Pi OS images. I didn't see a lot of other options out there and what I did find was way more expensive so this was exactly what I was looking for. You will not be disappointed. I normally don't write reviews but like I said, there were not a lot of other options, so I felt compelled to let other people in my situation know how happy I am with this purchase. 5 stars all the way!
Joseph M. Rogers
2025-08-06 13:31:35
Too much experimentaton and too little manual. Works great when you first format your targets sd or sd micro card using the utilities menu step and then backing out of utilites and find the copy or copy and compare menu. Slot one is the master, slots 2 and 3 are the slot towhere to clone the master. works from bigger to smaller sd micro card when the master data is less then the size of the target sd or sd micro card.
Jason M
2025-06-24 13:08:10
Works exactly as expected. You need to only push 1 button to duplicate two cards at a time. I knocked it off 1 star because 2 of the 3 SD card adapters were broken upon receipt. I had plenty so it wasn’t worth returning, but was a little disappointing to have broken items.
Erc Price
2025-06-09 10:34:21
I tried to copy pictures from a 128 G SD phone card, to a 1T SD phone card for a new phones external card slot. Got about 80G in and the Red error light came on. After lots of digging, there is information that says different SD card sizes may...cause errors in copying. Not May.. it WILL, cause an error. Not only was the job incomplete, but the pictures were not recognized, and the SD card capacity was reduced by 90%. Luckily a reformat via the phones software restored the storage, (and wiped the drive). But, "best duplicator" is now a $150 doorstop.
Aaron Drayton
2025-04-12 13:26:33
worth the price and just a little time consuming with copying
Michael C.
2025-04-06 14:32:19
This does what it’s supposed to do. It will copy any sd card you have. Only problem is that it copies very very very slow. It took over 8 hours to copy a 128gb sd card. Over 6 hours for a 64 gb sd card. Other than that it does it’s job.
B. Matthieu
2025-01-12 18:05:21
This worked perfectly. It takes a few seconds to copy an SD card and does it from either portable or desk top.very happy with purchase
ricky w.chang
2024-11-25 14:25:22
This little box does the magic of copying SD card without using computer.All you need to do is to put the original SD card in the left slot and put a new SD card in the next slot and use the arrow button to show "copy" In the window. And then push the button with the â• on it and the little box will start to copy your SD card. As simple as that! Wonderful gadget for people value their original data so you always have a copy on hand.
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