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ASUS RAIDR Express 240GB PCI-Express SSD review: is this the future?

How does ASUS' PCI-Express SSD perform compared to normal SSDs?


Two versions

The RAIDR Express comes in two versions, 120 GB and 240 GB. That translates to two RAID configurations of two 60 GB SSDs and two 120 GB SSDs. We tested the 240 GB model that will cost about € 440 according to ASUS. That's about twice the price per gigabyte compared to standard SSDS. 

The SSD contains the Marvell 88SE9230 RAID controller and two LSI SandForce SF-2281 SSD controllers. They're both combined with 120 GB of state-of-the-art Toshiba 19nm MLC flashchips. The Toshiba chips employ 16 kB pages. 

ASUS Raider Express 240GB

ASUS Raider Express 240GB

Communication with the PC occurs via PCI-Express 2.0 x2, so you have to put the card in a  PCI-Express x4, x8 or x16 slot. PCI-Express 2.0 x2 offers a transfer rate of up to 1 GB/s.

ASUS claims the 240GB model of the RAIDR can achieve speeds of up to 830 MB/s for reading and 810 MB/s for writing, in addition to 100.000 4k read and write IOps.

The full TRIM-compatibility is important, because it's often not present on other RAID-based SSDs which means their performance can decrease the longer they're in use. The card uses about 7W when idle, and 16W when in use according to ASUS.

Product nameRaider Express 240GB
Product code90MB0G60-M0EAY0
DetailsProduct info
Disc typeSSD
Quoted capacity240 GB
Rotation speed0 rpm
SSD controllerSandForce SF-2281
Measured capacity223.4 GB
Native Command Queuing
TRIM support
Flash memory typeMulti-level cell
Flash chip brandToshiba
Transistor size flash chips19 nm
Warranty3 year(s)
Read (sequentially)830 MB/s
Write (sequentially)810 MB/s
Read (4k random)100000 IOps
Write (4k random)100000 IOps
Physical properties
Height20 mm

Product discussed in this review

  Product Lowest price
ASUS Raider Express 240GB

SSD, 240 GB, 0 rpm, PCI-Express, SandForce SF-2281, 830 MB/s, 810 MB/s

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