Adaptec AEC-82885T Single

Adaptec AEC‑82885T Single – Advanced SAS Expander Card

The Adaptec AEC-82885T Single is a high-performance, single-port SAS expander card designed to extend the storage capabilities of enterprise and data center environments. By providing an additional 12 Gb/s SAS interface, it enables seamless integration of multiple SAS/SATA devices into a single host bus adapter (HBA) architecture.

Key Technical Specifications

• Maximum Data Transfer Rate: 12 000 Mbit/s (≈1.5 GB/s)
• Host Interface: PCI Express (PCI‑E), ensuring low-latency, high-bandwidth connectivity to the server’s motherboard.
• Physical Dimensions: Depth: 6.57" (167 mm); Height: 2.52" (64 mm) – a compact footprint suitable for standard 3U chassis.
• Power Requirements: Input current of 1.34 A at 12 V; Output voltage also 12 V, compatible with typical server power supplies.
• Mean Time Between Failures (MTBF): 1 000 000 h – a testament to its reliability in mission-critical deployments.
• Compliance: CE, FCC, UL, C‑tick, VCCI, KCC, CNS, and RoHS – ensuring adherence to global safety, electromagnetic compatibility, and environmental standards.

Design & Architecture

The AEC-82885T Single is engineered with a single-port SAS expander architecture, allowing it to act as an intermediary between the host bus adapter and up to 36 downstream SAS/SATA devices. Internally, the card incorporates advanced SAS controller logic that manages data flow, error correction, and device discovery without burdening the host CPU.

Its PCI Express interface leverages the full bandwidth of the PCIe lane(s) allocated to it, providing direct access to the host’s memory space. This design eliminates bottlenecks commonly associated with older parallel or SATA-based expanders, ensuring that high-throughput workloads such as virtualization, database operations, and large-scale backups run smoothly.

Connectivity & Compatibility

The expander supports both SAS-6Gb/s and SAS-12Gb/s devices, offering flexibility for mixed environments. It is fully compatible with standard SAS initiator protocols, enabling transparent communication between the host and attached storage arrays.

With its wired connectivity technology, the card eliminates wireless interference concerns and guarantees stable data paths. The device’s internal architecture ensures that all connected drives receive consistent power and signal integrity, reducing the likelihood of link failures or performance degradation.

Reliability & Longevity

The AEC-82885T Single boasts an impressive MTBF of 1 000 000 hours, which translates to roughly 114 years of continuous operation under typical load conditions. This longevity is achieved through robust component selection, rigorous thermal management, and comprehensive testing during the manufacturing process.

Its compliance with RoHS and other environmental regulations further underscores its suitability for long-term deployment in data centers that prioritize sustainability and regulatory adherence.

Use Cases & Deployment Scenarios

• Enterprise Storage Expansion: Add up to 36 SAS/SATA drives to a single HBA, simplifying cabling and reducing rack space consumption.
• Virtualization Platforms: Provide high-throughput storage access for virtual machines, ensuring low latency and consistent I/O performance.
• Backup & Disaster Recovery: Facilitate rapid data replication across multiple drives, leveraging the card’s 12 Gb/s throughput to accelerate backup windows.
• High-Performance Computing (HPC): Deliver fast, reliable storage access for compute-intensive workloads that demand sustained I/O rates.

Installation & Integration

Installing the AEC-82885T Single is straightforward: insert the card into an available PCIe slot on the server’s motherboard, connect the required SAS cables to downstream devices, and power up. The device’s firmware automatically detects attached drives and configures them for optimal performance.

Because it operates as a pure expander, no additional drivers are typically required beyond those provided by the host operating system for SAS controllers. This minimal software footprint simplifies maintenance and reduces potential points of failure.

Conclusion

The Adaptec AEC-82885T Single stands out as a reliable, high-speed SAS expander that delivers exceptional performance while maintaining a compact form factor. Its robust design, extensive compliance certifications, and proven MTBF make it an ideal choice for organizations seeking to scale their storage infrastructure without compromising on reliability or efficiency.