TEST: Sabrent Rocket 4 Plus 500GB M.2 SSD

Technical data
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Manufacturer	Sabrent
Model number	SB-RKT4P-500
Storage capacity	500 GB (466 GiB)
pSLC-Cache	53 GB approx.
Read speed	7000 MB/s
Write speed	3500 MB/s
Interface	PCIe 4.0 x4
Connection	M.2 2280
Memory module (NAND)	TLC
DRAM Cache	✓ yes
TBW (Total Bytes Written)	350 Terabyte
Controller	Phison PS5018-E18
Price	ca. 65 USD (= 0,13 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

96 %

Write speed

69 %

*) Test result evaluated according to AS SSD Score within the same size.

This SSD is PS5 compatible. It can be used as expansion storage in a PlayStation 5 console.

AS SSD Benchmark

Standard performance test

The standard test was performed using a 5 GB file. A total score of 6410 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	5803,72 MB/s	3765,95 MB/s
4K in megabytes per second	75,13 MB/s	207,41 MB/s
4K-64Thrd in megabytes per second	1406,85 MB/s	2796,73 MB/s
Access time in milliseconds	0,018 ms	0,091 ms
Score	2062	3381
Total score	6410

Copy Performance Test

A common everyday situation is simulated here. Three test folders are created:

• ISO (folder with two large files)
• Program (folder with many small files)
• Game (folder with small and large files)

The three folders are copied using the Windows Copy command (the cache remains enabled). The practical test of September 19, 2023 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD Copy-Benchmark	Transfer rate:	Duration:
ISO two large files	2311,43 MB/s	0,99 s
Program many small files	1137,69 MB/s	6,19 s
Game small and large files	1932,12 MB/s	3,58 s

Compression Performance Test

This measures the write and read speed of the the Sabrent SSDSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 7000MB/s and 3500MB/s respectively).

CrystalDiskMark Benchmark

Here, two sequential and two random performance tests are performed, similar to the ones performed on the AS SSD.

CDM	Read [MB/s]	Write [MB/s]
SEQ1M Q8T1	7139,52	3932,08
SEQ1M Q1T1	4049,84	3941,74
RND4K Q32T16	1830,48	3212,29
RND4K Q1T1	80,86	235,52

HD Tune Pro Endurance test

This is a long term test to make full use of the memory capacity. You can see when a cache is full and the writing performance decreases. A test file of 100 GB was written to the medium. After approx. 53 GB, the pSLC-Cache was full and the performance was throttled.
At least the test file could be read with an average write speed of 5887 MB/s and written with 1528 MB/s.

HD Tune Pro Benchmark

HD Tune writes a 5 GB file to the Sabrent M.2 SSD. The transfer data of the read speed is displayed graphically. The minimum, maximum and average values are also determined. The determined access time and burst rate are also displayed.

ATTO Disk Benchmark

Here, a 256 MB file is written several times to the Sabrent M.2 SSD. The I/O block size varies (from 512 bytes to 64 megabytes). The larger the blocks, the faster they can be written and read.

SSD-Z Benchmark

Similar to HD Tune, a 500 MB file is written to the Sabrent M.2 SSD here. The transfer data is displayed. The more constant the line, the better.

The benchmark test was performed on September 19, 2023.
Information about the test system can be found at the bottom of the home page.
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