Sabrent Rocket 4 Plus NVMe 4.0 Gen4 PCIe M.2 4TB SSD Review

Storage/SSD by stefan @ 2023-11-13

The Rocket 4 Plus from Sabrent does offer good performance and quite a bit of capacity when talking about the 4TB SKU, packing the proven Phison PS5018-E18 controller, 2GB of DDR4-2666 DRAM for caching and no less than eight Micron 176-layer 3D NAND TLC ICs. TLCs not only assure a sustained write rate for longer, a higher transfer rate when writing directly to the TLC portion of the chips but are also more durable than QLC, with a rating of 3000TB for the specific 4TB SKU.

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A Closer Look Contd.

The installation guide will show the inexperienced user on how to perform the actual procedure:

 

 

 

The top area of the drive is covered by a thin copper foil, which acts as a heatspreader; on it we will see the Sabrent logo, the product branding but also the drive capacity:

 

 

 

On the back, a large plastic sticker does cover the rest of the components (four NAND ICs and one DRAM cache), while including information on the product internal code name, the serial number but also logos of the supported standards;

 

 

 

After removing the copper foil, we will note the placement of the components on the top area of the PCB; we have here four more NAND ICs, the DRAM cache and also the main controller:

 

 

 

The controller is again a Phison PS5018-E18-41, built on the TSMC 12nm process, with eight channels, a speed of 1600MT/s per channel and support for DDR4 caching. In terms of architecture we do have a 32-bit ARM Cortex R5 (three CPUs) CoXProcessor Technology processor, data reliability is assured by 4th Gen LDPC engine, End-to-End Data Path Protection and SmartECC and many other security features are included as well:

 

 

 

The SK Hynix H5AN8G6NDJ DRAM cache comes with a capacity of 1GB and an operating speed of 2666MHz. With the extra chip on the opposite side, we do have a total of 2GB of cache:

 

 

 

Each NAND IC is a Micron IA8HG94AYA 176-layer 3D TLC; with a capacity of 512GB, we have a total of 8 chips on the board:

 

 

 

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