IRDM gen. 2 SATA III 2,5″ SSD

IRDM GEN. 2 SSD is an upgrade to the Iridium SSD. GEN. 2 SSD is based on proven and reliable combination – MLC NAND flash and Phison S11 controller. IRDM is suitable to operate both as a cache memory and a main drive in a wide range of applications.

Key features
  • Available capacities:
    120 GB 240 GB
  • 2,5" form factor
  • SATA III (6 Gb/s) interface
  • MLC NAND flash technology
  • 3-year warranty limited by the TBW* parameter and free technical support

High performance

SSD IRDM offers solid parameters by reaching up to 540 MB/s for sequential read and 520 MB/s for sequential write. By using classic 2.5” form factor with SATA III interface, IRDM SSD can be widely adopted in older or less advanced applications that lack the PCIe connector or doesn’t require the highest level of performance.

Feel the difference

If your computer is performing slower than you like, replacing the HDD with an SSD is one of the most cost-effective changes you can make. It will completely change your computing experience. SSDs are faster because they call up data more rapidly, so they accelerate boot-up times and app loading. You’ll also experience less stutter when playing games, as the rest of your PC doesn’t need to wait for game data to load.

Durable MLC

IRDM SSD design is based on robust and efficient MLC NAND flash memory. They are up to 10x more durable than the TLC NAND flash used in standard consumer drives.

Quality & endurance

IRDM SSD is built around selected MLC NAND memory chips and Phison S11 dual-channel controller. Detailed tests and selection of components made it possible to create an efficient and durable SSD. The quality of this product is recognized by a three-year manufacturer’s warranty.


* TBW (Total Bytes Written) – SSD durability, a parameter that determines the maximum amount of data that can be saved on a drive until the warranty expires. The TBW parameter is defined in the SSD product specifications.


120, 240 GB


SATA III (6 Gb/s). Backwards compatible with SATA II and I

Form factor


Memory chips

MLC NAND flash


Phison S11


up to 61 000 for read operations
up to 87 000 for write operations


2 000 000 hours

Operating temperature

0 - 70°C

Storage temperature

-45 - 85°C


100 x 69,85 x 7 mm


1Based on tests performed in ATTO Disk Benchmark 4.00.0f2 on SSD in FOB (fresh out of box) state. Parameters may vary depending on the computer configuration or SSD wear.
2Test performed in IOMeter with the following settings: QD32, random 4k.
3The warranty period ends on the date when the SSD has exceeded its TBW.
120 GB240 GB
Compressible data read (max.)1540 MB/s540 MB/s
Compressible data write (max.)1520 MB/s520 MB/s
Number of random read operations for 4k files (max. IOPS238 00061 000
Number of random write operations for 4k files (max. IOPS)285 00087 000
TBW (TB)390180

Logistics data

IRDM GEN.2 120GB120 GBSSD, 2,5 mm spacerIR-SSDPR-S25A-1205908267922620
IRDM GEN.2 240GB240 GBSSD, 2,5 mm spacerIR-SSDPR-S25A-2405908267922644


The capacity for GOODRAM SSD is given in accordance with the IDEMA standard (LBA1-03). After formatting the drive, the capacity shown by the operating system may be lower than the advertised capacity.
Capacity in the specificationThe capacity visible in the operating system
120 GB111,79 GB
240 GB223,57 GB

GOODRAM reserves the right to change the specification at any time without prior information.

Form factor Size File
Software ZIP 42 MB
Product brochure PDF 0.06 MB
Manual PDF 1 MB
Photos ZIP 15 MB

New IRDM gen. 2 SSD is using the updated version of MLC NAND flash.

Both drives are based on MLC NAND flash, which means they deliver good performance and reliability. The basic difference between them is a built-in DRAM cache in IRDM PRO. This makes IRDM much more suitable for professional use.

Najczęściej zadawane pytania w tej kategorii

The actual storage capacity of solid state drive depends on the technology used. In the case of newer NAND FLASH technologies, the controller reserves space for the operations and execution of tasks that happen during the use of drive. As the latest NAND flash memory require larger system structures, the controller uses additional space to ensure correct operation of the wear levelling algorithms. In practice, this means longer SSD lifetime, optimized memory performance and significantly increased data security.

The percentage drop is determined by the amount of data written and the number of program/erase cycles. It often happens that the first percentage (from the maximum value of 100% to 99%) changes faster. The further percentage change should advance at a slower pace.

The purpose of heatsink is to reduce the SSD temperature which reduces the effect of thermal throttling. Thermal throttling effects in the SSD performance drop once it reaches certain temperature.

In some situations, slight slowdowns may be noticeable. They depend on the performance of the entire system. Since the processor must decrypt the encrypted data, this can affect the system or application launch speed.

Very often sudden freezes may result from driver issues or power management services within the operating system. Another reason may be that the drive is under massive load, causing internal garbage collection mechanisms to slow down the drive's operation. These mechanisms are activated in idle mode, but there may be cases when they operate while the drive is in use. If you are experiencing such problem, do not hesitate to contact us.

No, warranty for GOODRAM SSD is not limited by the TBW value.

Yes, the drive will be compatible with the SATA II interface, but its performance will be limited to performance, provided by SATA II interface.