GIGABYTE CSA4820 (rev. 1.x)

The GIGABYTE CSA4820 (rev. 1.x) is a Host Bus Adapter (HBA) designed to enhance storage connectivity in server environments. It features the Broadcom® SAS3816 controller and connects via a PCIe 4.0 x8 interface. The card is equipped with two SlimLine SAS 8i connectors, supporting up to 16 SAS 12Gb/s or SATA 6Gb/s physical devices, and up to four PCIe x4 NVMe physical devices. In total, it can manage up to 1,024 SAS/SATA devices or 32 NVMe devices.

The GIGABYTE CSA4820 (rev. 1.x) is a low-profile card measuring 68.9 x 120 mm and comes with both full-height and low-profile brackets to accommodate various server configurations. It's important to note that this HBA does not support RAID functionality and is compatible exclusively with GIGABYTE servers. ​

For server configurations requiring high-density storage connectivity without RAID, the CSA4820 offers a robust solution within GIGABYTE's ecosystem.​

GIGABYTE CSA4820 (REV. 1.X) SPEC

1P Xeon D-2700 | 4xDDR4-3200 1TB | PCIe4.0x16+OCP3.0 | 8xSATA+2xM.2 | 2x10GbE+1GbE BMC | 1U/2U hybrid

Breakdown of key features:

1. CPU: Single Intel Xeon D-2700 (Ice Lake-D, 4-20 cores)
2. Memory: 4× DDR4-3200 RDIMM slots (1TB max w/ 256GB modules)
3. Expansion:
   • 1× PCIe 4.0 x16 (x8 electrical)
   • OCP 3.0 mezzanine slot
4. Storage:
   • 8× SATA 6Gbps
   • 2× M.2 2280 (PCIe 4.0 x4)
5. Networking:
   • 2× 10GbE (Intel X550-AT2)
   • 1× 1GbE (BMC dedicated)
6. Management: ASPEED AST2600 BMC (IPMI 2.0 + Redfish)
7. Form Factor: Proprietary (optimized for 1U/2U chassis)

This configuration is ideal for:

• Storage servers (NAS/SAN)
• Network appliances (firewalls, routers)
• Edge computing nodes

GIGABYTE CSA4820 (REV. 1.X) APPLICATIONS

1. Cloud & Edge Storage Solutions

• Software-Defined Storage (SDS):
  • 8x SATA + 2x M.2 support for hybrid NAS/SAN (e.g., TrueNAS, Ceph)
  • Low-power Ice Lake-D SoC (45W–129W) optimizes $/TB for cold storage
• AI Data Lakes:
  • OCP 3.0 slot for 100GbE networking to accelerate data ingestion

2. Network Appliances

• Security Gateways:
  • 2x native 10GbE + OCP 3.0 for firewalls (pfSense, FortiGate VMs)
  • Hardware AES-NI acceleration for VPN/encryption workloads
• 5G/LTE Edge Routers:
  • Compact 1U form factor fits telco micro-DCs

3. Lightweight Virtualization

• Kubernetes Worker Nodes:
  • 20C/40T Xeon D-2790 handles 50+ containers
  • BMC enables lights-out management for edge clusters
• Branch Office Servers:
  • Replace multiple appliances (DC, file server, backup) in one 2U chassis

4. Industrial & IoT Gateways

• Factory Automation:
  • -40°C to 85°C operation (with industrial-grade components)
  • M.2 slots for real-time OS (QNX, VxWorks)