|Is Discontinued By Manufacturer||いいえ|
|Item Dimensions L x W x H||19 x 16 x 9 mm|
|OS||Windows_7, Windows_vista, Mac_os|
|梱包サイズ||1.91 x 1.6 x 0.89 cm|
|商品の寸法 幅 × 高さ||19 x 16 x 9 mm|
SANDISK USB3.0フラッシュ 64GB SDCZ43-064G (ULTRA Fit)
|価格:||+ ￥340 配送料|
●小型なサイズを活かしてデータ置き場に最適 通常のUSBメモリの4分の1以下のサイズとなっているため、SSDの容量に心許のないデバイス(タブレットPCやスティック型PC等)には最適なストレージです。 ●容量：64GB ●ブランド: SanDisk ●対応OS: Microsoft Windows 7, マイクロソフト Windows Vista, Apple MacOS X 10.6 ●読み取りレート: 最大 150 MB/s ●インターフェースタイプ: USB 3.0
【 サンディスク 正規品 】5年保証 USBメモリ 64GB USB 2.0 超小型 SanDisk Cruzer Fit SDCZ33-064G-JA57
【 サンディスク 正規品 】5年保証 USBメモリ 64GB USB 3.1 超小型 SanDisk Ultra Fit SDCZ430-064G-J57
Transcend USBメモリ 64GB USB3.1 & USB 3.0 キャップレス シルバー 耐衝撃 防滴 防塵 TS64GJF710S
64GB USBメモリー USB3.0 TOSHIBA 東芝 TransMemory 超高速 超小型サイズ [並行輸入品]
BUFFALO USB3.0対応 マイクロUSBメモリー 32GB レッド RUF3-PS32G-RD
|最大メモリ容量(GB)||64 GB||64.0 GB||64 GB||64 GB||64.0 GB||32.0 GB|
|対応OS||mac_os; windows_vista; windows_7||Windows_xp; mac_os; windows_vista||mac_os; windows_vista; windows_8; Windows_10; windows_7||not_machine_specific||mac_os; Windows_10; windows_7; windows_8.1||not_machine_specific|
Windows10 の ReadyBoost として使おうと思っていましたが、当てが外れました。
まさか、USB 3.0 を謳っているメモリがイカレているとは思わず、原因の特定に時間がかかりました。
USB 2.0 としてならトラブルなく使えています。
短時間の使用であれば、USB 3.0 でも使えるのではないかと思います。
DISK FORMATTERでフォーマットするとフォーマットできないし、HP USBDisk Storageは容量の情報まで消えてしまって一時はどうなるかと思いましたが、HP USBDisk StorageでFAT32フォーマットする→容量情報が消える→DISK FORMATTERでFAT32フォーマット→復活の手順で無事フォーマットできました。どうしてうまくいったのかはよくわかりません。
I'm not a hardware expert at all (uneducated guesswork incoming) but it seems like the computer is trying to ask the USB flash drive something, as if the PC has sent a little inspector to USB town to find out where everyone lives: this little guy goes up and down the streets of USB town knocking on doors and taking notes so the PC knows the locations of all the streets and houses in USB town.
He visits all the houses in USB town in the blink of an eye and everything goes well until he comes to a house where the lights are on but no one is home. So he knocks. No answer. He knocks again. Still no answer. He keeps knocking and knocking trying to find out who lives here which causes a lot of electricity to be pointlessly sent to the USB device causing it to heat up to skin burning temperatures very fast (which is very bad if it's plugged directly into a USB slot, not so bad if its on a USB extension cable as that's easier to replace). As the heat engulfs USB town like a sudden super volcano just erupted from the house the inspector was stuck at and the nearby houses seem to malfunction to causing the problem to spread. Attempts to use File Explorer and file transfers will fail as USB town becomes unresponsive.
A quick format followed by a more thorough format seems to return things to normal working order and I managed to slap my 40GB of music back onto it without further issues but as the device is a ticking time bomb I'm hesitant to leave it plugged into anything unsupervised. Even at the end of a USB extension cable to prevent heat damage to USB sockets the continous power draw may be damaging to devices like my TV and Xbox.
On first use, I found that the item failed on write transfer of large files.
i.e. the file transfer stopped, and Windows removed the device from the list of USB devices plugged in.
Read transfer of small and large files appeared Ok.
On investigation, the drive is formatted to FAT32 from the factory, and is delivered with some software for encrypting your data.
I did not use the supplied programs, as I have no need for data encryption for this usage.
I tested the device using
Crystal Diskmark : Failed to complete
ChkFlsh : OK on file test. Wont start on hardware test
h2testw : Failed to complete
RMPREPUSB : Size test seems OK
I reformatted to exFAT using the Windows 8.1, and the tests completed OK, (Except for ChkFlsh, which seems to have a problem with hardware testing USB drives > 16GB)
However, the sequential write speed is slower with exFAT.
Having no need for files > 4GB, I formatted back to FAT32, and everything now appears to be working great.
N.B. Windows 8.1 won't allow formatting a device of 64GB to FAT32, but the RMPREPUSB utility offers this option.
- Tested on Win-8.1 computer
- Formatted to FAT32
- In USB3 socket
CrystalDiskMark 3.0.2 x64 (C) 2007-2013 hiyohiyo
Crystal Dew World : http://crystalmark.info/
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 152.498 MB/s
Sequential Write : 73.041 MB/s
Random Read 512KB : 125.432 MB/s
Random Write 512KB : 21.230 MB/s
Random Read 4KB (QD=1) : 3.735 MB/s [ 911.8 IOPS]
Random Write 4KB (QD=1) : 2.285 MB/s [ 557.9 IOPS]
Random Read 4KB (QD=32) : 4.121 MB/s [ 1006.1 IOPS]
Random Write 4KB (QD=32) : 2.364 MB/s [ 577.2 IOPS]
Test : 1000 MB [G: 73.6% (42.5/57.8 GB)] (x5)
Date : 2016/05/01 18:26:22
OS : Windows 8 [6.2 Build 9200] (x64)
(Updated may 2016 to refresh the CrystalDiskMark benchmarks in an actual USB3 socket, as opposed to a USB2 socket masquerading as a faster one)
My Photos, Videos & game saves save instantly which my other card would take for ever. Some people have said it can get hot but I found when doing a full format to wipe the USB clean with no sandisk software on it, it felt just warm not to feel like it would burn you.
I would expect however if in continuas use it might get heated up but I'd say that's down to the stick now reduced to just the end not full body. It also works on backwards compatibility with 2.0 and still has good speed for that. Two brands that won't let you down are Corsair & Sandisk don't buy unbranded ones it ain't worth it!
EDIT: I've had it a while now and I've knocked off two stars. Why? Well, heat. As in lots and lots of heat. It turns out these small USB sticks suffer from an enormous amount of heat generation in use, so much so that some users are reporting that the bigger 128GB unit fails. This one gets hot enough that you wouldn't want to touch it and so to use it I have been plugging it in to an Anker USB3 and ethernet connector because it has a metal body which acts like a heatsink for it.
Yes, it's very convenient but the heat is just too much and risks damaging equipment. I think in all honesty you'd be better off going for one of the slightly bigger types for the sake of longevity and peace of mind. It's not like they're enormous really, is it?
This is still my biggest (memory wise), and smallest (physically) USB stick.
Sticks out enough that it's easy to get out of a USB port, but unobtrusive - not too sticky out.
Down sides: It can obstruct putting something out of the neighbouring USB port if they're RIGHT next to each other.
Actually really easy to lose o0. You don't think about these things, but seriously. I had a mess trying to find it after moving once. Keep it in a jewellery box or something, don't just chuck in a bag/box with cables and peripherals everywhere.
It would be nice if the plastic on the end was a little smaller but I imagine this would make it significantly harder to pull out of some computers.
Perfect for someone with a notebook or any device with a USB and small storage capacity as you can just slip it in the side and increase capacity. I've been using it on my Mac (256GB 8GB RAM) and have partitioned it to run windows through VirtualBox - I've been programming Python, running emulating Linux through a terminal and dealing with loss models in excel and the USB has held up great.
If you plan on having it plugged in all the time, it's an excellent little device that just blends in and I could not recommend it enough. If you're going to be pulling it out, beware as it is tiny and you may be better off buying something larger that is easier to find!
It works well enough for me, but the next time I get a flash drive I might consider getting a larger, more protected one, this one is so small its almost impractical.