CY
CY PCIe 3.0/4.0 x16 to 2 Port SFF-8654 8i Expansion Card with 12cm Bracket
Converts a PCIe 3.0/4.0 x16 slot into two SFF-8654 8i ports for SSDs or eGPUs at up to 64Gbps, includes a 12cm bracket
- Connect external GPU or SSD via optional cable
- PCIe 4.0 x16 delivers up to 64Gbps throughput
- Backward compatible with PCIe 3.0 motherboards
- Two SFF-8654 8i ports expand storage or graphics
- 12cm low-profile bracket fits small-form-factor systems
PCIe 3.0/4.0 x16 to SFF-8654 8i Adapter
This adapter converts a PCIe x16 slot into two SFF-8654 8i ports for connecting SSDs or an eGPU via optional cables. It suits small hosts, desktops and laptops that need high-speed storage or graphics expansion. The card requires a motherboard with detachable PCIe channels to recognise multiple drives; without channel splitting only one device is detected.
Thermals and Power in Normal Use
The passive bracket design relies on system airflow for cooling and adds negligible power draw beyond the attached devices. No active fans or external power connectors are present on the card itself. Noise remains limited to the host chassis fans under typical workloads.
Bracket and Fixing Holes
A 12 cm slot bracket and integrated fixing holes secure the adapter in compact chassis. These mechanical features ensure stable installation without extra mounting hardware. The bundle includes no cables, so SFF-8654 cables must be sourced separately for each connected device.
Highlights
- Connect external GPU or SSD via optional cable
- PCIe 4.0 x16 delivers up to 64Gbps throughput
- Backward compatible with PCIe 3.0 motherboards
- Two SFF-8654 8i ports expand storage or graphics
- 12cm low-profile bracket fits small-form-factor systems
Specifications
No published specifications for this item yet.
Questions about this item
How do I install the CY PCIe 3.0/4.0 x16 to 2 Port SFF-8654 8i Expansion Card, and what step is often missed?
Insert the card into a PCIe x16 slot on a motherboard that supports PCIe lane bifurcation; the bracket uses a 12cm slot. The step often missed is confirming the motherboard can split the x16 link — without bifurcation only one SFF-8654 port will be active.
What maintenance or replacement will this expansion card need later?
The card itself has no moving parts or consumable components. Maintenance is limited to keeping the gold fingers and SFF-8654 ports free of dust. Replacement is only required if the card is physically damaged or if a future build demands a different PCIe generation or port count.
What limit appears first under sustained heavy data transfer on this adapter?
The PCIe 4.0 x16 host link caps aggregate throughput at 64Gbps. When both SFF-8654 8i ports are active, that bandwidth is shared, so sustained transfers across two devices will hit the host-link ceiling before the individual 8i interfaces saturate.
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