HOOCCC
HOOCCC PCIe 4.0 x4 to OCuLink SFF-8612 Adapter Card
- PCI Express to Ocul…
- 1 x Oculink
$14.99
0.00019044BTC
In stock
HOOCCC
HOOCCC P3C PCIe 4.0 x4 to OCuLink SFF-8612 Adapter Card
Converts a PCIe 4.0 x4 slot into an OCuLink SFF-8612 port for external GPU or NVMe enclosures, includes 120 mm and 80 mm brackets, backward compatible with PCIe 3.0
- TypePCI Express to Oculink
- External Ports1 x Oculink Port
- Internal PortsPCI-e
Bracket Type P3C+ Full-Height Bracket
- P3C
- P3C+ Full-Height Bracket
- P3C+ Low-Profile Bracket
Struck-through versions exist but are not stocked here.
- PCIe 4.0 x4 bandwidth with backward compatibility to 3.0
- OCuLink SFF-8612 port works with SFF-8611 cables for eGPU or NVMe enclosures
- Full-height 120 mm and low-profile 80 mm brackets included for any chassis
- Gold-plated contacts and SMT assembly ensure durable high-frequency signal integrity
- 3 V power only via OCuLink; no hot-plug support — power off before install
What this adapter adds
The HOOCCC P3C turns an internal PCIe slot into an external OCuLink SFF-8612 port. It targets desktop owners who want to attach an eGPU dock, NVMe enclosure or other PCIe peripheral without opening the case again. Builders working in compact HTPC or server chassis also benefit from the included low-profile bracket. The card supplies 3.3 V only, so external devices must provide their own 12 V power.
The slot compatibility that matters
The adapter runs at PCIe 4.0 x4 Gen4 bandwidth and is backward compatible with PCIe 3.0 x4. It fits physically into any motherboard x4, x8 or x16 slot while operating electrically at x4. This single specification decides whether the card can saturate your external device; if your platform only offers x1 or x2 wiring, the link will negotiate down and limit throughput.
Capacity and headroom for external gear
One OCuLink SFF-8612 female port accepts standard SFF-8611 cables for a single external PCIe link. The 4.0 x4 lane budget comfortably handles modern GPUs and high-speed NVMe arrays at near-native speeds. Bandwidth runs out when the attached device demands more than four Gen4 lanes or when the host slot is wired for fewer lanes, making multi-device daisy-chains or dual-GPU setups unsuitable for this card.
Highlights
- PCIe 4.0 x4 bandwidth with backward compatibility to 3.0
- OCuLink SFF-8612 port works with SFF-8611 cables for eGPU or NVMe enclosures
- Full-height 120 mm and low-profile 80 mm brackets included for any chassis
- Gold-plated contacts and SMT assembly ensure durable high-frequency signal integrity
- 3 V power only via OCuLink; no hot-plug support — power off before install
Specifications
| Brand | HOOCCC |
|---|---|
| Series | Adapter Card |
| Model | P3C |
| Type | PCI Express to Oculink |
| External Ports | 1 x Oculink Port |
| Internal Ports | PCI-e |
Other versions of this model
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Questions about this item
What real-world throughput can I expect from the PCIe 4.0 x4 link once the card is installed?
The adapter passes through a full PCIe 4.0 x4 Gen4 connection, so an external GPU or NVMe enclosure sees the same lane width and signalling rate as an internal slot.
Which OCuLink standard does the port follow, and what cable type does it accept?
The female port is built to the SFF-8612 specification and mates with standard SFF-8611 data cables.
Will the included brackets let me mount this in a slim HTPC case?
Yes, both a 120 mm full-height bracket and an 80 mm low-profile bracket are supplied, covering ATX, micro-ATX and compact chassis.
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