







🚀 Transfer at the speed of now—because waiting is so last decade.
The SSK 128GB USB Flash Drive leverages USB 3.2 Gen2 technology to deliver ultra-high-speed data transfers up to 550MB/s read and 520MB/s write. Encased in a premium zinc alloy shell, it offers robust protection against shocks, water, and dust, making it ideal for professionals on the move. Its included USB-C adapter ensures seamless compatibility with the latest laptops, smartphones, and devices, combining portability with reliable, secure storage.












| ASIN | B09HK6M8CC |
| Additional Features | Compact |
| Best Sellers Rank | #521 in USB Flash Drives |
| Brand | SSK |
| Color | Grey |
| Compatible Devices | Macbook |
| Compatible Phone Models | USB C smartphones |
| Connectivity Technology | USB |
| Customer Reviews | 4.4 out of 5 stars 583 Reviews |
| Flash Memory Type | NAND |
| Hardware Interface | USB 3.2 Gen 2 |
| Manufacturer | SSK Corporation |
| Memory Storage Capacity | 128 GB |
| Model Name | SD300/128GB |
| Model Number | SD300 |
| Read Speed | 550 Megabytes Per Second |
| Special Feature | Compact |
| Warranty Description | 3-year warranty |
| Write Speed | 520 MB per second |
K**S
P h e n o m e n a l & unmatched quality!
Anyone need a true SS 2TB stick, this it is! Tested on torrenting applications...just like you who are reading this is planning to use. Don't deny it ;) Positives Very fast, registers as a 3.2usb device. The speeds are blazing (untested) from a user experience only. Great heat distribution, this stick as you can imagine can get hot. The case around it is made of steel. It's created to cool down upon high file transfers. No other USB stick I found uses the entire stick as a heatsink to keep itself cool. My only complaint is not paying for copper instead of steal. Some users have reported that this can be modified in the future (outside warranty). *** I have confirmed this is a TRUE 2TB. Does NOT recycle data. Neutral It's a beast when it comes to durability and ruggness. It's a tough monster that is heavy. If your looking for something light for keychain, look elsewhere. Yes keep any magnetics away from this too. Negatives Hmm, no other color options? Copper would be a better more costly metal. I don't think encryption hardware/software is included (use your own).
M**L
This thing is spectacular.
I got this not sure how fast it would be, because the last flashdrive I got was unreliable and overheated. This one definitely gets warm after use, but it is so blazing fast. I have been using it for months now and have transferred so many files. I am extremely happy with it. The solid metal feel is sturdy and resistant while also protecting your fingers from the heat when you reach for it. It managed to make it through a hectic move across the country and I love the USB-C that comes with it. My Dad only has USB-C ports so it's perfect when he asks me for my videos. It transfers Gigabytes of data in seconds! Don't go for the ultra cheap ones, they don't store as much as advertised, are unreliable, and slow. My Dad lost Gigabytes of data because of this. Get this so you don't waste your time, and start enjoying blazing fast and reliable file transfers!
A**D
Fast and rugged unit at a great price.
This unit is steel cased, and very very durable compared to plastic units. Speed is much much faster than other USB 3 units as well. This based on extensive daily use. There is not heat, easy to use, and portable.
M**S
Very Fast Write Speed that Does Not Slow When Nearing Capacity
I was in need of a fast writing, high capacity storage means in the form of a "thumb drive" but without their typical limitations. This miniature solid-state drive (SSD) was just what I needed. Writing speed with both small (in the 10-15kb range) and larger (a few to tens of mb) is very fast compared to the best and fasted flash drives I could find. Importantly it does not begin to slow after reaching about 50% capacity and reach a crawl at around 90%. The body and cover are metal (likely aluminum). It is therefore very sturdy and when covered seems immune to damage from careless handling, being carried in a pocket, etc. Be aware that this drive identifies as local (internal). This is [probably] done so that it can be easily used as a boot drive. Because of this, I had to make some odd and rather difficult adjustments to my custom programming that uses this drive as, by intentional design, it disallows certain operations to any internal drive. The device gets somewhat warm when simply connected (no reading/writing for hours) and quite warm during heavy write activity. The true purpose of the robust metal casing is likely that of heat sink. It seems effective as the temperature never approached what I consider "hot" for an electronic device. I have no way to assess the long-term durability and no experience with similar devices for comparison. Given the low price and essentially unknown Chinese manufacturer there are likely better choices for applications that find frequent heavy use.
F**K
Surprisingly fast and feels bulletproof!
I ordered this just to have a Windows To Go rescue disk and it handles that beautifully; runs virtually as fast as my system does when using my SSD. The speed is crazy! Read Gb/s in the mid 300's and WRITE in the high 200's. As others have said, it doesn't slow down on big jobs. It gets warm but not hot. This shows up on my system as a SCSI drive, different than my other USB Flash drives - is there an M.2 drive inside???? This acts more like a pure removable SSD than a USB Flash. Made of metal & feels bulletproof (maybe it IS!). Ordering more (bigger capacity) for sure.
Y**M
Top notch super fast and durable after three months
I researched for quite a lengthy while before deciding to get this flash drive because of being burned by a name brand Samsung flash drive that would fail and no longer be recognized on any device. I search and searched, and searched, and read all the possitive and negative reviews on numerous flash drives and decided to give this one a try, and I'm happy after 3 months of using it. This flash drive is super fast both with loading and offloading, and it's build into a durable heavy-duty casing that has held up thus far and still looks like new. Additionally, it comes with a soft case to tuck it into when you're not using it, which is very handy with keeping it identifiable from other things in my bag.
H**H
Falls apart
2023-09-23 UPDATE: Do not buy this drive because it falls apart. See the attached photo. This happened to me soon after I bought my first drive, but at that time, SSK answered my email and sent me a free replacement. The exact same defect happened with the replacement several month later. When I emailed SSK recently, they refused to reply. The company clearly has deep quality problems. This is a shame, because the drive has potential. Also, the #1 feature that I used to like about this drive was that it had sustained good transfer speeds (see original review below). But lately I have noticed that its transfer speed seems to oscillate. (Well, it could be caused by the source SATA SSD that I am copying files from that is the culprit, but I think that it is more like the SSK thumb drive that I am copying to.) -------------------------------------------------- ORIGINAL review: I am hungry for a high performance flash drive. I want an SSD on a small stick. The number 1 defect in every flash drive that I have owned up till now is that you get their rated speeds for maybe10-30 seconds, and then, due to crap thermal designs, the controller detects over heating and throttles the speed down by 3-5X. Disaster when you want to do serious file transfers. This drive, however, is the first that I have ever owned which seems to maintain its speed over long time periods. Writing a 20 GB file to it sees no diminishment in speed over the minute or so that that takes. I also love how the width and depth of this drive are minimal. My main complaint about this drive is that I do not like its flip cap. I would prefer a traditional cap. SSK: just make sure that you can put the cap on the non port end when you have the drive inserted, so that you do not lose the cap. SSK: you also need to revise this product to have a USBC-C version that gets the speeds of the Kingston DataTraveler Max. I would have bought the Kingston, but a) it is way too wide (causes port crowding) and b) it thermally throttles.
J**D
2 years no issues
I've had this for nearly 2 years. It's been running proxmox for 2 years with no issues. I got this for high read/write durability. I needed something that was fast and durable like a standard sata or m2 drive but with usb connection and stiff connection (unlike actual portable ssd drives). 2 years is better than an off the shelf one. my previous ssd died in 5 months (granted the drive was 8 years old). So far no issues.