Sandisk Extreme Portable 4TB, 1050MB/s R, 1000MB/s W, 3mtr Drop Protection, IP65 Water/dust Resistance, HW Encryption, PC,MAC & TypeC Smartphone Compatible, 5Y Warranty, External SSD, Black Color

transfer speed is indicatedeasy to carry and usegood quality and good value for money

Purchased 2TB Sandisk Extreme Portable 10gbps uses Samsung M.2 NVME SSD internals so will be extremely durable. I also read that this SSD has a DRAM cache to buffer the data makes it slightly better than Samsung T7 which is without a DRAM.To set the background, I recently bought the Acer Spin 5 i7 11th gen with 16gb LPDDR4X RAM, 500gb M.2 NVME PCIE Gen 4 SSD with 16gbps transfer rate. 2 Thunderbolt 4 C ports, 2 USB A ports, HDMI snd Micro SD slot. To match its capability, I purchased this Sandisc Extreme Pro 10gbps 2TB model.Could achieve real world 1+ gbps peak transfer speed over USB C Thunderbolt 4 for the Video folder. The video folder transferred in a jiffy. USB C 3 2 with 10gbps transfer capability will be sufficient to harness capability of this external Sandisk SSD.For Snaps and Music folder, speeds reduce to an average of 550mbps. Album metadata/Album cover slows the speed significantly to a crawling 10-15mbps.For Document folder, speed drops to about 475mbps.Therefore, in my thoughts for external SSD, write with maximum sequential transfer speeds is directly proportional to the file size (for small file sizes, HDD with USB 3.1 support will still be faster at peak threshold of 120 -300mbps). This is due to the quirky read-scan-erase-write cycle for each written file on SSD unlike direct sequential write on HDD over empty disc space.Also, please ensure that alternate USB C-C or USB A-C cables must be certified for minimum 10gbps transfer speed (my Amazon Basic USB C-C charging cable could not support >30mbps as its only meant for fast charging and not fast data transfer).Three soft issues to note is-1) SSD gets hot to touch during use2) 1xUSB C-C cable provided is stubby and short. Additional USB C female to USB A adapter is provided though the connection with main cable is a bit flimsy and not firm.3) Sandisk 5 year Warranty registration website did not recognize model number-serial number combination. I had to chat with their US Customer Support, provide them photos of front, back of the drive and Amazon Invoice copy. Next day, Warranty registration email was received from Sandisk for 5 years as promised.Update:I formatted the Sandisk Extreme Pro drive to NTFS so I can back up the Win 10 Laptop System Image (if you use Apple device, NTFS cannot be used for back up so take note). My 475 gb (all partitions) were backed up as an ISO Image file in just 15 minutes flat via Thubderbolt 4 USB C port! This is the best case scenario for restore in case something goes wrong using Recovery USB stick.CAUTION: NTFS format being newer and faster is not recognized by iOS nor Android (there is a hack) so take the right decision based on usage.Conclusion:Great for speed junkies, Gamers and Content creators

If you're looking for a portable SSD that delivers blazing-fast speeds, rugged durability, and the peace of mind that your data is protected, look no further than the SanDisk Extreme Portable SSD 1TB.Pros:Speed: This SSD is incredibly fast, boasting read speeds of up to 1050MB/s and write speeds of up to 1000MB/s. This means you can transfer large files in seconds and work with high-resolution videos and photos without any lag.Durability: Built to withstand the elements, this SSD is shock-resistant, dust-resistant, and water-resistant to IP65 standards. It can handle drops, bumps, and even a splash of water, making it perfect for outdoor adventurers and anyone who needs a reliable drive on the go.Compact and Portable: The SanDisk Extreme Portable SSD is incredibly small and lightweight, making it easy to slip into your pocket or bag. It's the perfect companion for your laptop, tablet, or smartphone.Password Protection: The included SanDisk SecureAccess software allows you to password-protect your files, adding an extra layer of security to your sensitive data.Warranty: Backed by a 5-year limited warranty, you can trust that your investment is protected.Cons:Price: High-performance portable SSDs like this one tend to be more expensive than traditional hard drives. However, the speed and durability of this drive make it a worthwhile investment for many users.Overall:The SanDisk Extreme Portable SSD 1TB is an excellent choice for anyone who needs a fast, reliable, and durable portable storage solution. Its impressive speed, rugged build, and compact size make it a standout product in its category. If you're willing to invest in top-notch performance and peace of mind, this SSD won't disappoint.

Fast, reliable and durable external storage solution. It’s insanely fast when it comes to transferring huge files. What I really hate is the supplied cable. It’s worth noting that the cable that comes with it is relatively short. I have heard scary stories about this drive. I've owned several WD and SanDisk internal SSD's. WD & SanDisk hasn’t failed me yet. The three meter drop protection, IP65 rating and hardware encryption gives me peace of mind. Great buy !!

Price worth and compact

The SSD drive is fast and handy. It copies the data faster than a normal HDD. It is purely a value for money buy. The SSD doesn't heats up at all, the design is very sleek and the build quality is also good.

Best one, it's portable and handy

I checked after some days the speed test found it is 40 mb ps speed only previously data slow at the time of transfer I am thinking because of my system, now I checked in advanced system their found this low speed now I need to transfer my all data and try to replace it is very very bad