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Green circuit board with silver bracket and two blue SFF-8643 connectors

Lenovo

Lenovo 7Y37A01084 12Gb SAS RAID network card 2GB cache 8 ports

SKU CH-PTMR-BY2TT MPN 7Y37A01084

Adds eight 12 Gbps SAS ports with 2 GB flash-backed cache and RAID 0, 1, 5, 6, 10, 50, 60 support over a PCIe 3.0 x8 slot

  • Weight0.88
  • 12 Gbps SAS RAID controller with 2 GB flash-backed cache protects data during power loss
  • PCIe 3.0 x8 host interface delivers high-throughput connectivity for demanding workloads
  • Eight 12 Gbps SAS ports via two SFF-8643 connectors support up to eight drives
  • RAID levels 0, 1, 5, 6, 10, 50, 60 and JBOD provide flexible storage configuration
  • RoHS and WEEE certified for environmentally responsible deployment

Lenovo 12Gb SAS RAID adapter

The Lenovo 7Y37A01084 is a 12Gb SAS RAID adapter built on a PCIe 3.0 x8 host interface. It provides eight SAS ports through two SFF-8643 connectors for internal drive arrays. The card supports RAID levels 0, 1, 10, 5, 50, 6 and 60 plus JBOD mode. It is intended for servers and workstations that need hardware RAID with flash-backed cache.

Thermals noise and power draw

The plug-in card uses a passive heatsink cooled by chassis airflow, so it adds no fan noise of its own. Power is drawn solely from the PCIe slot within the x8 envelope. The 2GB flash-backed cache protects write data during unexpected power loss without a separate battery module. RoHS and WEEE certifications confirm restricted-substance compliance.

Upgrade path and when it matters

This adapter replaces software RAID or older 6Gb SAS controllers that lack flash-backed cache. The jump is worth it when uptime and write performance matter for mixed 12Gbps and 6Gbps drive sets. It is not for systems without a PCIe 3.0 x8 slot or for installations that require external SAS connectivity.

Highlights

  • 12 Gbps SAS RAID controller with 2 GB flash-backed cache protects data during power loss
  • PCIe 3.0 x8 host interface delivers high-throughput connectivity for demanding workloads
  • Eight 12 Gbps SAS ports via two SFF-8643 connectors support up to eight drives
  • RAID levels 0, 1, 5, 6, 10, 50, 60 and JBOD provide flexible storage configuration
  • RoHS and WEEE certified for environmentally responsible deployment

Specifications

BrandLenovo DCG
Weight0.88
Shipping weight0.91 kg
Package size254 × 203 × 152 mm

Questions about this item

How is the PCIe 3.0 x8 card seated and which SFF-8643 cables attach to the eight SAS ports?

Insert the adapter into a PCIe 3.0 x8 slot, secure the bracket screw, then connect two SFF-8643 cables — each cable breaks out to four drive backplanes for the eight 12 Gbps SAS ports.

When does the 2 GB flash-backed cache module need replacement?

The integrated flash-backed cache is non-removable; if the super-capacitor or flash memory degrades, the entire adapter must be swapped.

At what throughput does the x8 host link become the bottleneck during sustained RAID 5 or 6 writes?

The PCIe 3.0 x8 interface caps sustained bandwidth near 8 GB/s, which limits combined 12 Gbps drive streams before the controller does.

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