M9RY6 Dell SAS 12GB Raid Controller PCI Express at discount

M9RY6 Specifications

Dell PERC H840 12 Gb/s SAS RAID Controller (Low Profile / Full Height)

Manufacturer: Dell
Manufacturer Model: M9RY6
Product Line: Dell PERC Series RAID Controller
Product Series: H840 12 Gb/s SAS RAID Controller
Product Type: Internal Server RAID Controller
Product Name: Dell PERC H840 8‑Port 12 Gb/s SAS RAID Controller

KEY FEATURES:
Controller Type: Hardware RAID controller
Interface Type: PCI Express 3.0 × 8
SAS Connectivity: 12 Gb/s SAS / 6 Gb/s SATA support
Ports: 8 SAS ports (via 2x Mini‑SAS HD SFF‑8643)
Cache Memory: ~2 GB DDR4 or 8 GB non‑volatile (varies by configuration)
RAID Levels Supported: RAID 0, 1, 5, 6, 10, 50, 60
Write‑Back Cache: Yes (flash‑backed or DDR4 with battery/cache module)
Form Factor: Low‑Profile bracket (with some variants also available in full‑height)

PERFORMANCE:
Maximum Data Transfer Rate: 12 Gb/s per SAS link
High throughput for enterprise storage arrays
Supports up to ~255 physical drives with enclosures/external expanders
Optimised RAID offload for performance and redundancy

ENVIRONMENTAL & RELIABILITY:
Designed for enterprise‑class 24×7 operation
Cache protection and power‑loss data integrity mechanisms
Commonly used in Dell PowerEdge server storage configurations

PHYSICAL:
Form Factor: PCIe RAID controller card (low‑profile or full‑height)
Bus Interface: PCIe 3.0 × 8
Connectors: 2x Mini‑SAS HD (SFF‑8643) for SAS/SATA devices
Typical Dimensions: Standard RAID controller card size