SAMSUNG DUO Plus 256GB - 300MB/s USB 3.1 Flash Drive (MUF-256DB/AM), Black/Sliver

Wow! This is the first 3.1 USB flash drive that transfers at advertised speeds. Movie files take less than a minute (6gb). I’ve included a screenshot from flashbench with benchmark speeds and posted the log below. I like that the flash drive has both a 3.0 and 3.1 connector. No matter where I go, I can connect my flash drive. I want to also note that I am using the front panel of my PC when I ran the benchmark. Might see increased speeds when using the back of the computer connected directly into the MOBO.Just some words of advise. I you are having issues with transfer speeds, try plugging the drive into the back of the PC.Refreshing devices.Refreshing devices. [Done]Starting benchmark.Bechmarking G:(0374520100004531)Started at 01/05/21 10:43:27Filename: G:\test.tmpStarting large file benchmark. With 100MB file.16384k:6 Write Speed:100.06MB/s16384k:6 Write Speed:111.49MB/s16384k:6 Write Speed:109.29MB/s16384k:6 Average Write Speed:106.71MB/s16384k:6 Read Speed:373.63MB/s16384k:6 Read Speed:369.53MB/s16384k:6 Read Speed:378.59MB/s16384k:6 Average Read Speed:373.88MB/s8192k:12 Write Speed:109.84MB/s8192k:12 Write Speed:110.55MB/s8192k:12 Write Speed:108.83MB/s8192k:12 Average Write Speed:109.73MB/s8192k:12 Read Speed:377.05MB/s8192k:12 Read Speed:373.70MB/s8192k:12 Read Speed:379.21MB/s8192k:12 Average Read Speed:376.64MB/s4096k:25 Write Speed:108.75MB/s4096k:25 Write Speed:110.40MB/s4096k:25 Write Speed:110.81MB/s4096k:25 Average Write Speed:109.98MB/s4096k:25 Read Speed:364.63MB/s4096k:25 Read Speed:379.99MB/s4096k:25 Read Speed:380.19MB/s4096k:25 Average Read Speed:374.79MB/s2048k:50 Write Speed:109.88MB/s2048k:50 Write Speed:110.72MB/s2048k:50 Write Speed:109.51MB/s2048k:50 Average Write Speed:110.03MB/s2048k:50 Read Speed:378.93MB/s2048k:50 Read Speed:376.85MB/s2048k:50 Read Speed:381.52MB/s2048k:50 Average Read Speed:379.09MB/s1024k:100 Write Speed:110.33MB/s1024k:100 Write Speed:109.72MB/s1024k:100 Write Speed:108.54MB/s1024k:100 Average Write Speed:109.52MB/s1024k:100 Read Speed:362.83MB/s1024k:100 Read Speed:382.65MB/s1024k:100 Read Speed:382.68MB/s1024k:100 Average Read Speed:375.82MB/s512k:200 Write Speed:110.96MB/s512k:200 Write Speed:108.78MB/s512k:200 Write Speed:109.35MB/s512k:200 Average Write Speed:109.69MB/s512k:200 Read Speed:383.60MB/s512k:200 Read Speed:377.95MB/s512k:200 Read Speed:385.22MB/s512k:200 Average Read Speed:382.23MB/sDeleting file.Starting small file benchmark. With 10MB file.256k:40 Write Speed:111.31MB/s256k:40 Write Speed:102.42MB/s256k:40 Write Speed:113.32MB/s256k:40 Average Write Speed:108.80MB/s256k:40 Read Speed:328.48MB/s256k:40 Read Speed:348.11MB/s256k:40 Read Speed:348.12MB/s256k:40 Average Read Speed:341.32MB/s128k:80 Write Speed:102.34MB/s128k:80 Write Speed:109.73MB/s128k:80 Write Speed:101.56MB/s128k:80 Average Write Speed:104.42MB/s128k:80 Read Speed:267.72MB/s128k:80 Read Speed:306.58MB/s128k:80 Read Speed:307.66MB/s128k:80 Average Read Speed:292.76MB/s64k:160 Write Speed:99.65MB/s64k:160 Write Speed:97.25MB/s64k:160 Write Speed:92.35MB/s64k:160 Average Write Speed:96.32MB/s64k:160 Read Speed:244.82MB/s64k:160 Read Speed:256.00MB/s64k:160 Read Speed:257.70MB/s64k:160 Average Read Speed:252.71MB/s32k:320 Write Speed:95.48MB/s32k:320 Write Speed:93.38MB/s32k:320 Write Speed:100.24MB/s32k:320 Average Write Speed:96.28MB/s32k:320 Read Speed:92.53MB/s32k:320 Read Speed:95.24MB/s32k:320 Read Speed:89.17MB/s32k:320 Average Read Speed:92.24MB/sDeleting file.Starting tiny file benchmark. With 1MB file.16k:320 Write Speed:68.34MB/s16k:320 Write Speed:76.24MB/s16k:320 Write Speed:75.91MB/s16k:320 Average Write Speed:73.31MB/s16k:320 Read Speed:50.16MB/s16k:320 Read Speed:51.08MB/s16k:320 Read Speed:49.83MB/s16k:320 Average Read Speed:50.35MB/s8k:640 Write Speed:51.88MB/s8k:640 Write Speed:54.16MB/s8k:640 Write Speed:52.08MB/s8k:640 Average Write Speed:52.69MB/s8k:640 Read Speed:32.34MB/s8k:640 Read Speed:31.95MB/s8k:640 Read Speed:33.42MB/s8k:640 Average Read Speed:32.56MB/s4k:1280 Write Speed:31.40MB/s4k:1280 Write Speed:29.25MB/s4k:1280 Write Speed:32.09MB/s4k:1280 Average Write Speed:30.87MB/s4k:1280 Read Speed:17.60MB/s4k:1280 Read Speed:17.86MB/s4k:1280 Read Speed:17.80MB/s4k:1280 Average Read Speed:17.75MB/s2k:2560 Write Speed:6.88MB/s2k:2560 Write Speed:6.33MB/s2k:2560 Write Speed:6.83MB/s2k:2560 Average Write Speed:6.67MB/s2k:2560 Read Speed:9.18MB/s2k:2560 Read Speed:9.32MB/s2k:2560 Read Speed:9.35MB/s2k:2560 Average Read Speed:9.28MB/s1k:5120 Write Speed:3.58MB/s1k:5120 Write Speed:3.81MB/s1k:5120 Write Speed:3.37MB/s1k:5120 Average Write Speed:3.58MB/s1k:5120 Read Speed:4.74MB/s1k:5120 Read Speed:4.77MB/s1k:5120 Read Speed:4.77MB/s1k:5120 Average Read Speed:4.76MB/sDeleting file.Benchmark done.Ended at 01/05/21 10:44:05

Awesome

Pros:I bought a SAMSUNG Duo Plus 256GB USB flash drive on sale for around $43.99 and that's a good price compared to its competition in July 2021.Its read & write speeds are fast, although similar to ALL flash drives that I have used, its speed varies a lot and its speed depends on the file size and formatting of the drive. Small files write much slower than large files, and that is typical of ALL flash drives (a.k.a., thumb drives) that I have used in the past 20+/- years.Cons:SAMSUNG Duo Plus' write speed varies a lot, but it writes faster than the Kavolen drive that I have, and this SAMSUNG drive writes much faster than the Elefull drive that I have.Comparisons:My Elefull drive was lower priced $ but it developed multiple ''bad sectors'' after using it for 1+ months.My Kavolen drive had more and more slowdown issues in reading & writing data after using it for a month.So far, after using this SAMSUNG drive for 1 month, I haven't noticed any read/write issues or bad sectors.

The adapter it comes with for 3.1 is next to useless. Not a very solid connection and only works for a few seconds. It will heat up and PC claims nothing is connecting after that. USB-c of course works fine if you have that connection then nothing to worry about. Don't mistaken the speed rating on these of however, it's misleading when they talk about the "ram" or cache on usb sticks. It's about what you'd expect and nothing impressive, but it is very useful with how compact it is and size of memory. A worthy buy.

I am a programmer and use these things a lot. Most of these are very fast, but overheat and slow down. After enough over heating cycles, they just stay slow. This thing gets warm, but not overly hot like my other speed demons. I never just leave it plugged in for that reason.From a speed standpoint, it is still dialed in and flying. The little USB-A to USB-C converter is awesome since my customer machine is all USB-C and my machine is both, but my company issued Surface Laptop is all USB-A along with my many older machines, thereby making it easy to float around the fleet and transfer stuff.It feels stout, fits into the machines well, and chugs away quickly, so really there is no downside here. The only reason I didn't go for the larger drives is simply because I live in fear of losing it. I wish someone would make a way to find a stick when you lose it like a Apple tag or whatever. I would buy that drive!

Purchased the 256gb drive and it is noticeably faster than my other flash drives. Transferred 27+gb in less than two minutes.Before using the drive, I formatted it into Apple’s APFS format since I don’t really touch PC’s unless I am paid and have mentally prepared myself.For some of those folks having performance issues, I suspect the formatting may be a reason especially if it is either a non-native format or a format intended for 32bit architecture.It’s a little more expensive than other flash drives, especially for the 256gb one but considering the performance difference and comparing it to others on the market, it is reasonably priced.Love that it is USB-C flash drive that also has a built-in USB-A adapter. Quite a smart and ergonomic solution.For Mac users with Thunderbolt 3/4 ports: The small size of the flash drive allows for other devices to be plugged into the port next to it.Hope the product lasts a long time.