16GB EMMC Module,Plug and Play EMMC Module for Raspberry Pi,32GB EMMC Module (16GB)

The circuit board of this EMMC-to-micro-SD adapter is of good quality and well soldered. The EMMC brand included on my 16GB version is Samsung, which is a good brand. Of course, the EMMC will be running in 4-bit bus width over a micro SD card slot, not full 8-bit bus width for which EMMC is capable. But 4-bit bus width is the most any SD card can do. The USB 3.0 adapter is basic but uses a good chipset. It's the Genesys GL3213S. So, all in, this is a nice set! Very handy for all kinds of development work that I do.

Using on a raspberry pi 3B+. Ran for a while on a rock64 system. Haven't run benchmarks yet but seems faster, systems boot quick and run well. Have had SD cards stop in the past (no errors, just burn out, become unusable) so if the EMMC is more reliable as I've heard from multiple sources, then well worth it. Have had the pi on 24/7 for a few weeks. Time will tell. Requires more space obviously so standard cases may be problematic - this pi is mounted to a flat board similar to a DINrPlate mount.

Amazing device, got it for my raspberry pi, I've wanted one of these for over 10 years.

You won't go wrong by using this eMMC module to boot your Raspberry Pi. While its sequential read/write performance falls short of some SD cards, there's more to the story. SD cards typically are optimized for storing large, infrequently-changing files like photos and videos, but they can perform poorly when handling the small, frequent activity (aka random read/write) that comes with running an operating system. That's where this eMMC module comes in: it offers balanced performance that's better suited to hosting your Pi's OS.A real-life example: My old SD card benchmarks into the 90MB/s range, seemingly faster than this eMMC module's 45MB/s. When actually running an OS, however, the cards' performance tells a different tale. I created a fresh Pi OS installation on each card and recorded the time needed to install all current updates (downloading time excluded, of course.) The SD card took 5m34s, while this eMMC module finished the same job in 4m34s - about 18% faster. Of course, the performance difference will depend on your application, but for this typical OS maintenance task, the eMMC module easily wins despite its lower benchmark score.The only downside for this eMMC module is that it’s physically much larger than a microSD card. You need about 20x20mm clearance where the module sticks out of the Pi’s SD card slot. If you’re using the Pi inside a case or enclosure, make sure there’s adequate room to handle the added bulk.Overall, this eMMC module makes for an ideal storage device to boot your Raspberry Pi, and it comes with a nice USB 3.0 card reader as a bonus. Recommended, as long as it physically fits your application.

One of the issues I've had in the past is with the reliability of microSD cards with my Raspberry Pi. This has solved my issue by adapting more robust EMCC to a standard SD card slot. Very excited about this product!

Though I've not benchmarked this thing, or had it long enough to evaluate it's long-term reliability, I am thus far very happy with the unit. My luck with microSD cards has been very much a mixed bag, as I look upon the stack of "everyone's recommended brand/size/vendor" microSD cards, all of which have died for one reason or another, in cameras, cell phones, mp3 players, dash cams, and yes, my Raspberry Pis.Though All my Pis now boot to SSDs exclusively, I wanted this device so that I could conveniently try different distributions and such, without wearing out microSD cards. This device has thus far worked great, and I hope it serves me well for many years.My review is only 4 stars for one reason. This dongle is not case friendly. I'm sure it was never designed with that as a priority, but given the failure rate of microSD cards, and the fact that some cases require disassembly and removal of the Pi to replace the microSD card, if this were ever small enough to match the footprint of an actual microSD card, I'd give it 5 stars (and then some.)