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Microsemi
Microsemi 2295000-R SmartRAID 3154-16i RAID controller 16-port 12Gb/s 4GB DDR4
16-port 12Gb/s SAS/SATA RAID controller with 4GB DDR4 cache, PCIe 3.0 x8, low-profile MD2 form factor
- Part2295000-R
- Form FactorMD2 - Low Profile
- TypeSATA / SAS
- Internal Connectors4 x SFF-8643 mini-SAS HD
- InterfacePCI-Express 3.0 x8
- Transfer RateUp to 12Gb/s
- 16 internal ports support up to 12Gb/s SAS and SATA drives
- 4GB DDR4 cache at 2100 MHz accelerates read and write performance
- PCIe 3.0 x8 interface provides high-bandwidth connectivity for server platforms
- Mixed Mode allows RAID and HBA devices to operate simultaneously
- Flash-backed cache with tethered capacitor module protects data during power loss
Server storage controller
The Microsemi SmartRAID 3154-16i is a PCI-Express 3.0 x8 RAID adapter that provides sixteen internal SAS and SATA connections through four SFF-8643 mini-SAS HD ports. It is designed for servers and workstations that need 12 Gbps storage bandwidth and hardware RAID acceleration. The low-profile MD2 form factor fits dense chassis where full-height cards cannot be installed.
Power management cuts draw by up to thirty percent
The adapter includes adapter power management that reduces power consumption by up to thirty percent during normal operation. A tethered ASCM-35F capacitor module provides flash-backed cache protection, writing the 4 GB DDR4 cache to non-volatile memory instantly if power is lost. This design avoids battery maintenance while keeping write data safe during unexpected shutdowns.
Four mini-SAS HD connectors drive sixteen drives
Four SFF-8643 internal connectors each fan out to four SAS or SATA devices, supporting up to sixteen drives without an external expander. A low-profile vented bracket is included for installation in restricted-height slots. Mixed Mode allows RAID volumes and HBA passthrough devices to operate simultaneously on the same adapter, simplifying migrations and tiered storage layouts.
Highlights
- 16 internal ports support up to 12Gb/s SAS and SATA drives
- 4GB DDR4 cache at 2100 MHz accelerates read and write performance
- PCIe 3.0 x8 interface provides high-bandwidth connectivity for server platforms
- Mixed Mode allows RAID and HBA devices to operate simultaneously
- Flash-backed cache with tethered capacitor module protects data during power loss
Specifications
| Brand | Microsemi |
|---|---|
| Model | 3154-16i |
| Part | 2295000-R |
| Form Factor | MD2 - Low Profile |
| Type | SATA / SAS |
| Internal Connectors | 4 x SFF-8643 mini-SAS HD |
| Interface | PCI-Express 3.0 x8 |
| Transfer Rate | Up to 12Gb/s |
| Cache Memory | 4GB DDR4 / 2100 MHz |
| Operating Systems Supported | Microsoft Windows Red Hat Linux SUSE Linux Debian Linux Ubuntu Linux Solaris FreeBSD VMware ESXi Citrix XenServer |
| Dimensions | 2.54" x 6.60" (H x L) |
| Features | Ideal for enabling 12 Gbps storage capabilities in performance-hungry server and workstation platforms, without compromising proven Microsemi reliability Provides high I/O transaction and high bandwidth processing solutions that reduce energy consumption and maintenance costs Accelerates storage with up to 4GB of highspeed DRAM cache with integrated cache protection (SmartRAID 315x SKUs only) |
| Package Contents | SmartRAID 3154-16i adapter Additional low profile vented bracket |
| Shipping weight | 0.91 kg |
| Package size | 414 × 305 × 104 mm |
Questions about this item
How is the Microsemi 3154-16i installed in a low-profile server, and which bracket step is often missed?
Insert the controller into a PCI-Express 3.0 x8 slot, then swap the full-height bracket for the included low-profile vented bracket before securing the card; the bracket swap is the step most installers forget.
What maintenance will the on-board 4GB DDR4 cache and tethered ASCM-35F capacitor module require over time?
The 4GB DDR4 cache is soldered and needs no service; the ASCM-35F super-capacitor module is tethered and designed to last the adapter's service life without user replacement.
At what sustained transfer ceiling does the PCIe 3.0 x8 host link become the bottleneck for the sixteen 12Gb/s SAS/SATA ports?
The x8 PCIe 3.0 interface caps aggregate throughput near 8 GB/s, so heavy multi-drive workloads will hit that host-bus limit before the individual 12Gb/s port links saturate.
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