Practical Computer Peripherals Part Four: Cheaper but Faster: SanDisk Ultra Flair CZ73 USB 3.0 U Disk Usage Report

Foreword and purchase suggestions

The two originals recently written have been praised by some friends. Thank you very much. You have the uncle of money, and you also hope to have a lot of support (rewards). This one feels that there is nothing to write. It may be It's relatively simple, if you think that tasteless is not as good as my other original moves, more capital (playing) porcelain (rewards) Oh!

Or just focus directly on it:

The speed is a bit slow, cheap, compact and lightweight, 5 year warranty, copying files below 1G speed ;

Purchase suggestions: look at the demand, the speed of the request is not high, or write a small file worth of friends can buy, if you often transfer large files or choose a higher level of U disk.

The first chapter: out of the box

What brought us today is SanDisk's (CZ73) USB3.0 USB flash drive.

U disk is our work, life, can not be separated from the gadget, previously used is this Kingston U disk 16G, the results the other day the son took the game do not know where to lose, thought it would appear slowly, The results haven't come out for a week or two and you can only buy one more. Suffering from the previous USB 2.0 transmission speed is too slow, this time to buy a USB3.0, but it also rarely copy large files, 2.0 or 3.0, capacity is not a problem for me.

Jingdong placed orders yesterday. Today, the speed is as fast as it can be. I like one, but JD's current packaging is much more shabby than in previous years. In previous years, such items as JD.com were also packed in small cardboard boxes. .

It is recommended that Jingdong can use the envelope with bubble bag inside, and it will not be deformed by pressure.

Product information is printed on the back, except that there are no manuals on the back. The back has a 5-year warranty

Cut out the serial number of the one-year RescuePro data recovery software that is printed here.

The compact, lightweight U disk comes to everyone: light to 9g

Back information: Made in China

Some details photos: blue USB interface

Some size comparison photos

Size 41.50mm x 17.60mm x 7.40mm, weight 9g is indeed light enough, but the U disk is too small and easy to lose good or bad, these years to buy a U disk never used bad, all lost

Chapter 2: On-machine Testing & Simple Comparison

For this U disk, I just want to simply dry a single, after all, too amateur, do not know how to measure.

Insert the computer's USB3.0 port, computer seconds recognition, capacity 28.6G

U disk into the discovery of free encryption software

First introduce the computer configuration

And another USB flash drive in my office that was compared during this test: USB2.0 SanDisk Blade (CZ50) 8GB U disk (also plugged into the USB 3.0 port of the computer)

Did not pay attention to the beginning, the computer's power mode is set to balance mode , the test result is very slow (left: CZ50, right for the protagonist CZ73)

After resetting the power mode to high performance mode, the test run is faster, but the speed is almost the same when the data is actually read (the write has a boost) (the left figure is CZ50, and the right is the lead character CZ73). Copying 3 movie files from 5.31G to Cool (CZ73) from the solid state takes about 3 minutes and 58 seconds. The writing speed starts at about 90MB/s, and after writing about 1G data, the writing speed drops to 20MB/s. About S

The reason for the speed drop after writing to 1G was later found on the Internet:

The following figure is to copy the same file to the CZ50, the speed is slower to 4MB/S or so, the total time did not go to wait, and waited for more than ten minutes is really no patience

From Coco (CZ73) copy out 3 movie files 5.31G to solid state (Solid model Lite-T9 200G), it takes about 2 minutes and 18 seconds, the read speed is stable at about 38MB/S, I do not know why this speed is a bit slow (Not the same speed as 2.0)


Copying the file from the Cool Blade (CZ50) to the solid state, the reading speed is maintained at about 38MB/S (the same as the CZ73?), so I doubt that there is a problem with my notebook's USB interface. . . Reading disk works in 2.0 mode? ( Nominal reading speed 130M/S )

So I started this from Jingdong, installed my USB3.0 interface on my desktop computer, and then tested it. (To test 50 USB flash drives and bought 69 expansion cards, I was drunk myself) :

After installation, automatic identification, no need to install the driver. On the CDM speed, the result is the same as the speed of the notebook. Then the driver CD provided by the expansion card manufacturer is randomly installed. The speed of the expansion card is not as good as that of the WIN10 driver. I am also drunk. . . (The left picture shows the driver provided by the manufacturer and the right driver is WIN10.)

Then test the actual file write: write a movie about 1.42G in size, it takes 47 seconds 40 seconds; after the speed is down about 20M/S and the notebook is similar, it seems that the speed of this disk is also like this. . . Some disappointed

Retest the same file readout: read a movie about 1.42G in size, which takes 20 seconds and 65 seconds; however, reading speed on Jinsheng’s expansion card is faster than the notebook (notebook is only 38M/S). 67M/S or so ( Nominal reading speed 130M/S )

Chapter 3: Afterwards

I was on the 22nd to buy orders for 55.9 yuan. As a result, on the 23rd, the price was reduced to 49.9 yuan on the mobile terminal. I contacted the customer service to apply for a price guarantee. I said immediately that the payment had been made, and the return balance had arrived at the second. Jingdong's service must be praised. Ah, accidentally bought a good price to start.

To buy digital electronic products, I still rely more on Jingdong's self-operation: good service, quality assurance, fast delivery, and convenience after sales.

For this U disk, it is worth buying.

In general, this U disk is slow except for a bit slow . Everything else is good. . .

Well, there is one more thing. If you see it, thank you very much. Please also pay your grandfather a little bit of money.

Value friends, again!