I bought the CZ880 earlier. At the time, I chose the 128GB capacity. If it is big or small, it can handle it under normal circumstances. However, as the usage time increases, a lot of commonly used materials are stored, so sometimes it is a bit awkward to copy some large-capacity content, so I plan to change to 256GB. I found LEXAR's new product P30 when I was visiting the online store, with a reading and writing speed of 450M/sec, so I bought one.

The packaging is more exquisite. Compared with the one with only a plastic shell and cardboard, it has more security. As can be seen from the product renderings on the front, the interface adopts the same retractable design as the CZ880.

The model and transmission standard are marked on the side of the box: USB 3.2 Gen 1 high-speed interface, with a maximum reading and writing speed of 450M/sec.

The overall size is 78.2 x 21 x 11.8mm, and the shell is made of one-piece zinc alloy, with a light matte texture, which is resistant to falling and abrasion, and excellent protection performance. There is a working status indicator on the front, and white light flashes during data transmission.

The back is a whole metal shell, printed with the capacity logo, and designed with three arc-shaped raised textures, which can play a non-slip effect when the plate is pushed forward.

The original accessories come with a protective bag, imported first-layer calfskin material, which feels very comfortable. When the USB flash drive is installed in the protective bag, it cannot be pushed out. It needs to be taken out for normal use.

Push the 45-degree metal base forward to expose the USB interface. There is a card slot design inside, which can prevent retreat when plugged into the computer, but it is compared to the complete locking mechanism of the CZ880. If the interface is too tight, you need to press the tail to insert it, otherwise the internal disc body will retract.

Read and write speed test

Lexar P30 has four capacity versions: 128GB/256GB/512GB/1TB. The read speed of 128GB is 450M/sec. and the write speed is 420M/sec. The read and write speeds of 256GB/512GB/1TB are both 450M/sec, and the transmission speeds of the four capacity versions of Sandisk CZ880 are all: read 420M/sec and write 380M/sec, so the comparison test result is relatively objective.

Crystal Disk Mark 6.0.1 x64 test results: Lexar P30 read 444.1MB/sec, Lexar P30 write 436.6MB/sec

AS SSD Benchmark 2.0 test results: Lexar P30 reads 429.50MB/sec, Lexar P30 writes 425.98MB/sec

TxBENCH test results: Lexar P30 reads 455MB/sec, Lexar P30 writes 449MB/sec

Actual file writing speed test: Lexar P30 writes 367MB/sec

In addition, the corresponding reading and writing test was also carried out on the MacBook Pro notebook, the software is Disk Speed Test:

Lexar P30 reads 421MB/sec, Lexar P30 writes 412MB/sec

From the test results, the read and write speed of Lexar P30 is not much different from the manufacturer's nominal parameters, and there is basically no shrinkage. In practical applications, its transmission speed is very stable. The 450MB/sec write speed makes it save a lot of time when transferring large files.

Summary

Although mobile solid-state hard drives are becoming more and more popular, they still cannot replace the advantages of U disks in terms of compactness and portability. In actual life and work, if it is not an important file that needs to be backed up, I still prefer to use a U disk to store the files. Especially for some temporary files, U disk is more convenient than mobile hard disk. 256GB is also the most suitable capacity in my opinion.

Shortcoming:

The telescopic structure has no locking mechanism and is easy to retract