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🚀 Dual-port speed meets sleek durability—never run out of space or style again!
The SSK 512GB Dual USB C Flash Drive combines ultra-fast USB 3.2 Gen 2 speeds up to 550MB/s with a versatile dual-port design (USB-C + USB-A) for seamless data transfer across smartphones, tablets, laptops, and more. Its rugged zinc alloy shell ensures shock resistance and heat dissipation, while plug-and-play functionality supports broad compatibility with Windows, macOS, Android, and smart devices. Ideal for professionals who demand speed, reliability, and convenience in one sleek, portable package.

















| ASIN | B0C365PLCC |
| Additional Features | Lightweight, Shockproof |
| Best Sellers Rank | #22 in External Solid State Drives #28 in USB Flash Drives |
| Brand | SSK |
| Built-In Media | 1 x USB Type C Data Cable |
| Cache Memory Installed Size | 512 GB |
| Color | grey |
| Compatible Devices | Portable, Smartphone, Tablet, Television |
| Compatible Video Game Console Models | Sony PlayStation 4, Sony PlayStation 5 |
| Connectivity Technology | USB |
| Customer Package Type | Gift Box |
| Customer Reviews | 4.5 out of 5 stars 6,927 Reviews |
| Data Transfer Rate | 550 Megabits Per Second |
| Digital Storage Capacity | 512 GB |
| Enclosure Material | Nand Flash |
| Form Factor | 2.5-inch |
| Hard Disk Description | Solid State Drive |
| Hard Disk Interface | Solid State |
| Hard-Drive Size | 512 GB |
| Hardware Connectivity | Thunderbolt, USB 3.0 |
| Installation Type | External Hard Drive |
| Item Weight | 37 Grams |
| Manufacturer | SSK Corporation |
| Media Speed | 500 MB per second |
| Mfr Part Number | SD301 |
| Model Name | SD301/512GB |
| Model Number | SD301 |
| Number of Items | 1 |
| Read Speed | 550 Megabytes Per Second |
| Special Feature | Lightweight, Shockproof |
| Specific Uses For Product | Business, Gaming, Multimedia, Personal |
| Unit Count | 1.0 Count |
P**L
You CAN have your cake and eat it too
So far I have nothing but good things to say about this drive! It's crazy fast. I love having both USB-C and USB-A options. The metal housing looks great and feels incredibly well built. Event the pouch (which I didn't think I would care about) is great quality and offers great protection against scratches for when you have to throw it into a laptop bag to use on the go. In short, it's faster speed, better quality, and lower price than I have seen on anything else out there.
M**O
Awesome
I’m extremely happy with this computer drive! It was very easy to install, and my computer recognized it immediately with no issues. The speed is impressive—everything loads faster, and file transfers are quick and smooth. I’ve been using it daily, and it has been completely reliable with no lag or errors. The build quality feels solid, and it’s definitely a great value for the price. Whether you’re upgrading your system or just need extra storage, this drive does exactly what it promises. Highly recommend—would absolutely purchase again!
G**S
Very pleased with Proformance
Very nice flash drive and has a large enough base cache to copy largish files at decent speed - no dramatic speed drop like many USB 3.0 drives have on larger files. I am using it for Installation media - Files range from 2Gb to 10 GB.
J**H
Great little device for iphone photo backups
I'm a bit of a luddite when it comes to icloud and google photos - I much prefer the old, manual method of backing up files, with a cable, on to a hard drive. I was having huge issues with my iphone 16 showing up on my PC, the device simply does not appear in Device manager no way no how. Tried many cables and many computers. Maybe it's a setting in the phone. Regardless; It occurred to me these phones have USB-C and these "flash drives" exist. I read in a few places you can use them to transfer photos, and that was exactly my plan. It has fantastic build quality, works great right out of the box, and helped me complete my mission (of backing up photos) super quickly and painlessly through the Files app. I recommend this method to anyone.
V**S
Good, fast storage, but it gets too hot
Solid feel, fast data transfer, upload and download. It gets too hot, causes concerns about possibility of data loss or corruption. Digital micro circuits are very vulnerable to heat
M**O
Tiny and Mighty Flash Drive
Tired of those average flash drives... Yes! The ones with limited space and take forever to transfer all of your files? Say no more! With its 128GB to 1TB capacity and USB 3.2 Gen 2 interface, which offers read and write rates of up to 460MB and 360MB, respectively, the SSK External Flash Drive completely alters that. It's ideal for on-the-go use because it can be slipped into your pocket or attached to your key chain. This gadget is incredibly versatile, making it ideal for storing and playing documents, videos, and images in one location. Overall, this should provide consistent performance, while some people may discover different to comparable results. Several people have mentioned that this drive becomes hot, but exactly how toasty does it get? In the last two images, I recorded the base temperature 5 minutes after first plugging it in, which was 32°C. Then, I thought it wouldn't have made sense to take recordings of the tempture during the first test, so I ran two full tests with 9 runs per each SEQ (SEQUNTIAL) and RND (RANDOM) read/write of the 16 GB as a drive burner, each test taking about 10 minutes. During the second test, I recorded the temperature at 51°C which was its peak but hovering more around 50°C. However, in just a matter of one to two minutes its already cool due to its Zinc alloy outer coating. If your worried about the dual USB A and C ends not having the same speeds, have no worries! I ran both ends into the back end of my B450-F Gaming Motherboard which has USB A and C 10Gbps ports. The speeds have about 1% deviation in speeds if none at all since these tests aren't perfect, meaning the storage chips are slower than the interface so for complexity reasons in this review I've chosen to keep it simple. For anyone in search of a reliable pocket-sized device that offers both high speeds and large storage capacity, this is definitely the one to consider. Its performance is unmatched, providing fast data transfers and handling demanding tasks with ease. Whether you're backing up large files, running high-capacity tests, or need quick access to your data on the go, this device delivers consistently. There are virtually no alternatives on the market that offer the same combination of speed, durability, and storage in such a compact form. It's a game-changer for those who need portable, high-performance storage.
D**K
Speed was as advertised - rare - and durability outstanding
I just bought two USB gen 2 sticks from different vendors. This one claimed to be reading at speeds of 550 MB/sec, and I was leery. So many items never live up to their own hype. Well I have a slick tool now to measure such things, and this **delivered**. I am using EaseUS DiskMark which is part of their Partition Master Professional app. Sure enough it slightly *exceeded!!!* 550 MB on Sequential Read. For those newer to drive speeds in general, Sequential Read is the fastest (and so the metric companies claim), followed by slowing Random Read, Sequential write, and Random write (writing is just slower). Poor quality sticks often have a decent Read speed, that they use to market it, but terrible write speeds. This stick delivered! Its worst stat, random write, had only dropped to around 400 MB/sec which is an outstanding number and lack of the usual degradation in speed. Top marks. But the stick itself is a joy, almost space age. This stick has the feel you could whack it with a hammer all day. Ive had metal thumb drives before but the aluminum never felt sturdy. whatever alloy this is is tough as nails! In the photo, the little flip-back bar protecting the USB-C port looks pretty tiny - I assure you its no joke and *absolutely* will protect the port. Same goes for the other end and the USB-A connector cap - blast proof! The pouch for a keychain it comes with is also of high quality with a focus on durability, both in the leather-ish material, and especially the ring itself - its not going anywhere. I would have written this review just for my happiness with its speed, but the physical durability really puts it into a different category. At this price point there is just no reason to buy a cheap plastic thumb drive, and one where youre unsure of how badly it will degrade (if it even meets) its listed speed. This delivers on all fronts and is so robust it will last a lifetime. Slap it on that key chain, it can handle the abuse. drop it on the floor, stomp on it, no effect (im not joking). Absolute GEM of high quality mixed with durability and speed. This brand is now up there with Kingston and Samsung in my book (which is a long list of buying cheap disappointments)
W**.
More space
Quality product, just plug it in your phone and save what you need to from your phone .comes with a case too, my phone has no space so I had to get something to take most of my pictures off.
A**R
Just excellent
Very convenient to use, fast and stable
X**X
Tasarımı çok iyi ve kaliteli bir ürün tavsiye ederim.
Ürün çok hoş ve kaliteli duruyor veri aktarırken aşırı ısınmalar oluyor eliniz yanacak derecede, hızı iyi dışı alüminyum sanırım bu sebeple ısıyı dağıttığı için bir süre sonra oda sıcaklığına geliyor hoş bir ağırlığa sahip hissiyatı çok güzel yanında koruma kılıfı var anahtarlığa takılabiliyor. Üründen memnunum ve tavsiye ederim her hangi bir sorun yaşamadım ısınma sorunu olması bana normal geliyor gövdesi alüminyum metal ısınmayı dağıtıp kolay soğuma olacaktır. Teslim tarihinden önce geldi bunuda not düşeyim.
T**G
"Perfect Portable Storage for USB-C and USB-A"
"Excellent external SSD! The transfer speeds are incredibly fast, reaching up to 550MB/s as advertised. I love the dual USB-C and USB-A design, which makes it super versatile for both my laptop and phone. It's compact, durable, and works perfectly. Highly recommended!"
U**R
Highly recommended
Exactly high specification gadget.Excellent transfer speed.sturdy with holder ribbon space
S**A
Good choice
Super
Trustpilot
1 month ago
2 months ago