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Green circuit board plug-in RAID controller with two internal SAS connectors and a metal bracket

HPE

HPE Smart Array E208i-p SR Gen10 RAID Controller 804394-B21

SKU CH-6D4R-6K2XD MPN 804394-B21

Provides 12 Gb/s SAS RAID 0, 1, 5, 10 with 2 GB flash-backed cache and eight internal lanes over PCIe 3.0 x8

  • Product typeConsumer Electronics
  • 12Gb/s SAS throughput with PCIe 3.0 x8 host interface
  • RAID 0, 1, 5 and 10 plus simultaneous HBA mixed mode
  • 2 GB flash-backed cache protects write data on power loss
  • Eight internal SAS lanes connect SAS or SATA drives
  • HPE Smart Array SR Secure Encryption encrypts data at rest

Cost-effective RAID controller

The HPE Smart Array E208i-p SR Gen10 Controller connects eight internal SAS lanes to SAS or SATA drives through a PCI Express 3.0 x8 host interface. It supports RAID levels 0, 1, 5, and 10 for internal storage arrays. Mixed Mode operation combines RAID and HBA functions simultaneously on the same card. This plug-in controller targets servers needing 12Gb/s SAS performance without a premium price.

Enterprise-class build and internal connectivity

Two internal SAS connectors carry all eight lanes to the drive backplane or cage. The plug-in form factor fits standard low-profile or full-height PCIe slots in HPE Gen10 servers. Flash-backed cache protects 2 GB of write data during unexpected power loss. Encryption at rest secures data on any attached drive without requiring self-encrypting media. The design prioritises reliability for continuous server workloads.

Flash-backed cache and encryption included

The bundled 2 GB flash-backed cache module enables write-back acceleration while preserving data integrity during outages. HPE Smart Array SR Secure Encryption licenses are included, activating volume-level encryption on standard SAS or SATA drives. No separate key-management hardware is required for basic deployment. These bundled features reduce the total components needed to field a secure, high-availability storage array.

How it compares

Measured against everything we stock in RAID & Drive Controller Cards, at today’s prices. Recalculated every night.

Price $1,626.99
Pricier than about 91% of the 219 comparable items (median $155.99).

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Specifications

Product
Brand nameHP
Model name804394-B21
Product typeConsumer Electronics
Size & build
Shipping weight0.54 kg
Package size251 × 221 × 64 mm

Questions about this item

What PCIe 3.0 x8 bandwidth does the HPE Smart Array E208i-p SR Gen10 controller use?

The controller connects through a PCI Express 3.0 x8 host interface, giving eight lanes of bandwidth for SAS and SATA traffic.

What internal space and connectors does the E208i-p SR Gen10 need in the server?

It uses a plug-in form factor with two internal SAS connectors that provide eight lanes for SAS or SATA drives.

How is the E208i-p SR Gen10 installed and what step is often missed?

Seat the card in a PCIe 3.0 x8 slot, attach the two internal SAS cables to the backplanes, then enable the controller in the system BIOS or UEFI before creating arrays.

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