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STARTECH
STARTECH PEXM2SAT3422 RAID controller 2× M.2 SATA 2× SATA III PCIe x4
Adds two M.2 SATA SSDs and two SATA III ports via PCIe x4 with hardware RAID 0, 1, 10 and JBOD support
- Type1 - PCI Express x4 Male
- Internal Connectors2 - M.2 (NGFF; B-Key) Receptacle 2 - SATA (7 pin; Data) Plug
- InterfaceM.2 SATA (NGFF) SATA
- Transfer RateSerial ATA 3.0 specification - SATA I/II/III (1.5/3/6Gbps)
- RAIDJBOD - (Just a Bunch of Disks) RAID 1 (Mirrored Disks) RAID
- Operating Systems SupportedWindows 10 (32-bit or 64-bit), 8 / 8.1 (32-bit or 64-bit), 7
- Adds two M.2 SATA SSDs and two SATA III ports via PCIe x4
- Hardware RAID 0, 1, 10 and JBOD modes supported
- Compatible with Windows, macOS 10.8+ and Linux 3.5
- Low-profile bracket and M.2 screws included in the box
- Compact 4.70" x 7.10" card fits tight server chassis
M.2 SATA RAID controller
The StarTech PEXM2SAT3422 adds two M.2 NGFF B-key slots and two SATA III ports through a PCIe x4 connection. It targets builders who want hardware RAID across SATA M.2 drives and legacy SATA disks in a single card. The board supports JBOD, RAID 0, RAID 1 and RAID 10 modes for redundancy or speed. Windows, macOS and Linux drivers cover current and older releases.
PCIe x4 add-in card fit
The card occupies one PCIe x4 slot and includes a low-profile bracket for compact chassis. Two M.2 mounting screws secure the drives while a 4-pin SP4 power connector feeds them directly. Two native SATA III ports remain free for additional hard drives or SSDs without port multipliers. No extra power cables or adapters are required beyond the slot and SP4 header.
Sustained RAID workloads
Hardware RAID offloads parity calculation from the CPU during long mirror or stripe operations. NCQ support keeps command queues full across all four attached drives. SATA 6 Gbps links deliver consistent throughput for backup, recovery or hybrid-drive caching tasks. The controller maintains stability over extended transfers without thermal throttling or driver resets.
Highlights
- Adds two M.2 SATA SSDs and two SATA III ports via PCIe x4
- Hardware RAID 0, 1, 10 and JBOD modes supported
- Compatible with Windows, macOS 10.8+ and Linux 3.5
- Low-profile bracket and M.2 screws included in the box
- Compact 4.70" x 7.10" card fits tight server chassis
Specifications
| Brand | StarTech.com |
|---|---|
| Model | PEXM2SAT3422 |
| Type | 1 - PCI Express x4 Male |
| Internal Connectors | 2 - M.2 (NGFF; B-Key) Receptacle 2 - SATA (7 pin; Data) Plug 1 - SP4 (4 pin; Small Drive Power) Male |
| Interface | M.2 SATA (NGFF) SATA |
| Transfer Rate | Serial ATA 3.0 specification - SATA I/II/III (1.5/3/6Gbps) |
| RAID | JBOD - (Just a Bunch of Disks) RAID 1 (Mirrored Disks) RAID 0 (Striped Disks) RAID 10 (1+0; Striped set of Mirrored Subset) |
| Operating Systems Supported | Windows 10 (32-bit or 64-bit), 8 / 8.1 (32-bit or 64-bit), 7 (32-bit or 64-bit) Windows Server 2012, 2008 R2 Mac OS 10.8 and later (tested up to 10.11) Linux 3.5 |
| Dimensions | 4.70" x 0.80" x 7.10" |
| Windows Vista | 0.15 lb. |
| Features | Add two Next Generation Form Factor M.2 SSDs and two SATA ports to your computer through PCIe 2x M.2 NGFF SSD RAID Controller Card plus 2x SATA III Ports / PCIe 2-Slot PCI Express SATA M.2 RAID Card / SATA 3 Controller Host Card Adapter PCIe SATA Card for almost all SATA M.2 solid-state drives plus port multiplier up to 7 drives Storage controller supports hardware RAID / NCQ / HybridDrives / SATA3 6 Gbps Perfect for data recovery & backup / Improves the storage & performance of a PC |
| Package Contents | 1 - M.2 SSD RAID controller card 1 - low-profile bracket 2 - M.2 mounting screws 1 - quick-start guide |
| Shipping weight | 0.18 kg |
| Package size | 246 × 157 × 43 mm |
Questions about this item
Does the PCIe x4 slot provide enough bandwidth for four SATA 6 Gbps drives simultaneously?
The card uses a PCIe x4 interface and each SATA port runs at up to 6 Gbps, so the slot can saturate all four ports at once.
How loud or hot does the card get when all four drives run continuously?
The controller is passively cooled with no fan, so it adds no audible noise; heat output is low enough for standard case airflow.
What extra cable or connector is required to power the M.2 and SATA drives?
A 4-pin SP4 power connector on the card supplies drive power; you need a matching lead from your power supply.
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