This article covers KCMconmey LSI 9300-8i コントローラー HBAカード.

Overview

The KCMconmey LSI 9300-8i is a SAS/SATA Host Bus Adapter (HBA) powered by the LSI 3008 chipset. It connects via PCI Express 3.0 x8 and provides two internal SFF-8643 connectors, each supporting up to four 12Gbps SAS or 6Gbps SATA devices, for a total of eight ports. This makes it an excellent choice for expanding storage capacity in a home server, NAS, or workstation. Pre-flashed with IT mode firmware (version P16), the card operates as a non-RAID controller, passing drive control directly to the operating system. This is ideal for users who prefer software RAID solutions like ZFS, mdadm, or Storage Spaces. The package includes both full-height and low-profile brackets, ensuring compatibility with a wide range of chassis.

Connectivity & Compatibility

Supported interfaces: SAS (12Gbps), SATA (6Gbps/3Gbps) – backward compatible with older SATA drives Connectors: 2x internal SFF-8643 (Mini SAS HD) Host interface: PCI Express 3.0 x8 (works in x16 slots as well) Operating systems: Windows, Linux, FreeBSD, etc. Standard LSI/SAS drivers are supported * Brackets: full-height and low-profile included Keep in mind that the PCIe 3.0 x8 link provides up to 8 GB/s (one direction) of bandwidth. If you connect eight 12Gbps SAS SSDs and run heavy sequential workloads, you may hit the PCIe bandwidth limit. For most HDD or SATA SSD configurations, this is not a concern.

Product Info

The KCMconmey LSI 9300-8i is sold as a new controller card on Japan, priced around ¥11,284. It offers exceptional value for its feature set, especially compared to OEM server pulls or enterprise-grade HBAs that can cost many times more. In the market, this card sits in the mid-range HBA tier. It outclasses basic SATA port multiplier cards but lacks the advanced features of enterprise HBAs such as Broadcom 9500 series. However, for home lab and enthusiast use, it provides all the necessary functionality at a fraction of the cost. Accessories include the card itself, a full-height bracket, and a low-profile bracket. Warranty is typically 30-day return policy from the seller.

Best Use Cases

Home server / NAS builders: Ideal for users who want to attach multiple SAS or SATA drives for software RAID (ZFS, Unraid, etc.). The IT mode ensures the OS sees each drive directly, giving full control. Users running out of SATA ports on their motherboard: If your motherboard has only 4 SATA ports and you need more, this card adds up to 8 ports in a single PCIe slot. Data recovery / backup tasks: A non-RAID HBA is perfect for temporary drive connections, as it presents drives as-is without any RAID metadata interference. This card is not suitable for: Users who need hardware RAID (RAID 5/6/10 built into the controller) * Users who need NVMe expansion (this card is SAS/SATA only)

Things to Consider

Check your case clearance: while the card supports low-profile, some slim cases may have depth constraints. The firmware is fixed in IT mode; you cannot switch to RAID mode. Driver installation is straightforward, but some Linux distributions may require the mpt3sas module to be loaded. Ensure adequate airflow over the heatsink on the card, especially in a closed case. ## FAQ
Q: Can I use SATA SSDs with this card? A: Yes, SATA SSDs work perfectly. The SAS controller is backward compatible with SATA devices. Q: Does it work on Windows 10/11? A: Yes, Windows 10 and 11 recognize the card with the standard LSI SAS driver. Q: Can I boot from a drive connected to this card? A: Yes, if your BIOS/UEFI supports booting from a PCIe SAS controller, you can boot directly from a drive attached to the LSI 9300-8i.

Product Disclosure (Amazon)

  • Manufacturer: KCMconmey
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • Model: LSI 9300-8i
  • ASIN: B0FBWCJSJV
  • Note: This article covers a manufacturer-made product based on Amazon listing details.