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Green circuit board with silver PCIe connector and black components

HPE

HPE P48183-B21 NS204i-u Gen11 RAID controller NVMe PCIe 3.0 RAID 1

SKU CH-R2DE-Z3D6S MPN P48183-B21

NVMe PCIe 3.0 RAID 1 storage controller for HPE Gen11 servers

  • TypeComputer Accessories
  • NVMe PCIe 3.0 interface accelerates storage throughput
  • RAID 1 mirroring protects data against drive failure
  • HPE NS204i-u Gen11 design fits Gen11 server bays
  • PCIe 3.0 x8 connection delivers up to 204 Gbps bandwidth

HPE NS204i-u Gen11 RAID controller

The HPE P48183-B21 is a storage controller built for HPE Gen11 servers. It connects NVMe drives through a PCIe 3.0 interface and provides RAID 1 mirroring for data redundancy. This card suits administrators who need hardware RAID on boot or primary storage volumes. It is not intended for environments that require RAID 5, RAID 6 or JBOD configurations.

Sustained load behaviour

Under continuous write workloads the controller maintains mirror consistency across paired NVMe devices. The PCIe 3.0 link delivers steady bandwidth without the thermal throttling seen on shorter burst tests. Firmware manages rebuild priority so ongoing I/O remains responsive during drive replacement. Workloads demanding higher RAID levels or cache-backed write acceleration are outside its design scope.

Highlights

  • NVMe PCIe 3.0 interface accelerates storage throughput
  • RAID 1 mirroring protects data against drive failure
  • HPE NS204i-u Gen11 design fits Gen11 server bays
  • PCIe 3.0 x8 connection delivers up to 204 Gbps bandwidth

Specifications

BrandHP
TypeComputer Accessories
Shipping weight0.45 kg
Package size254 × 221 × 64 mm

Questions about this item

How much power does the NS204i-u Gen11 draw when running all day?

The controller operates on PCIe 3.0 slot power and has no external power connector, so it stays within the slot's rated delivery.

What drives must I already own for this RAID 1 controller to work?

You need two NVMe drives that fit your server's drive bays; the card presents them as a single mirrored volume.

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