OCUEKIT2
OCUE4221 + OCUD4241 OCuLink Expansion Kit (with full-height bracket)
- Creative professionals needing both high GPU performance and large-capacity storage.
- IT & enterprise users looking to extend SAS/SATA RAID or JBOD systems externally.
- Gamers and power users wanting better performance on compact or older systems.
- Mini PC or laptop users requiring PCIe expansion without internal space for upgrades.
Introduction
OCUE4221 is a standard PCIe x4 HH card with full height bracket that support PCIe Gen4 x4 and connect to an SFF 8612 OCuLink port, enabling external PCIe expansion. Paired with the OCUD4241, a PCIe device board, this kit allows users to extend the PCIe bus outside of the system—supporting external graphics card or SAS/SATA storage RAID card—without the need to upgrade their existing PC or workstation.
Features
OCuLink Scenario
With RAID Card = External Storage Application(SAS/SATA).
With GPU Card = eSports Application or AI Computing Application.
Application Sturcture
Specifications
Key Applications & Benefits
External GPU Support (eGPU)- Connect high-performance graphics cards for demanding 3D applications, video editing, or immersive gaming.
- Ideal for Mini PC, small form factor PCs, or systems that don’t support internal GPU upgrades.
- Easily connect SAS or SATA RAID/HBA cards to add multiple hard drives or SSDs via external enclosures.
- Perfect for video editing, large-scale backups, media archiving, or data center applications.
- Avoid the cost of a full system upgrade—simply add GPU or storage expansion externally.
- Flexible and modular approach to upgrading: expand only what you need, when you need it.
OCUE4221 Spec.
| Bus | PCIe Gen4x4 | ||
| Interface | SFF 8612 4i 42pin | ||
| Controller | PHISON PS7101 | ||
| Redriver settings | By BIOS or MCU(OCUD4241) | ||
| Form Factor | PCIe low profile PCB | ||
| ESD Protection | ±8KV Air / ±4KV Contact | ||
| Green Product | RoHS, WEEE | ||
| Regulatory Approvals | CE / FCC / VCCI / BSMI | ||
| Operation Temperature | 0 to 50°C (32 to 122°F) | ||
| Operation Humidity | < 85% non-condensing | ||
| Storage Temperature | -20 to 85°C (-4 to 185°F) | ||
| PCB Dimensions | 79.3 x 68.5 mm | ||
| Bracket | Standard 121 mm | ||
OCUD4241 Spec.
| Bus | PCIe Gen4x4 | ||
| Interface | SFF 8612 4i 42pin | ||
| PCIe Slot | PCIe x16 (4 lanes) | ||
| MCU Settings | By I2C set PCIe driving strength | ||
| Form Factor | Mini-ITX PC case supported | ||
| ESD Protection | ±8KV Air / ±4KV Contact | ||
| Green Product | RoHS, WEEE | ||
| Regulatory Approvals | CE / FCC / VCCI / BSMI | ||
| Operation Temperature | 0 to 50°C (32 to 122°F) | ||
| Operation Humidity | < 85% non-condensing | ||
| Storage Temperature | -20 to 85°C (-4 to 185°F) | ||
| PCB Dimensions | 203.2 x 107.2 mm | ||
| I/O Shield | Support standard ATX case | ||
Accessories
Including Accessories

SFF 8611 male to male 100cm external cable
- 100cm
- Part Number:1OCL-PS100AS100001
- 1 pcs.
Optional Accessories

OCuLink Kit - I/O Shielding Panel
- 162x48mm
- Part Number:12PS-OCUD4241XSZ00
- 1 pcs.
Support
Download Datasheet
| Datasheet | OCUEKIT2 Datasheet EN |
|
Download Guide
| Guide | OCUx Series Quick Installation Guide EN |
|
OCUEKIT2
OCUE4221 + OCUD4241 OCuLink Expansion Kit (with full-height bracket)
- Creative professionals needing both high GPU performance and large-capacity storage.
- IT & enterprise users looking to extend SAS/SATA RAID or JBOD systems externally.
- Gamers and power users wanting better performance on compact or older systems.
- Mini PC or laptop users requiring PCIe expansion without internal space for upgrades.
Introduction
OCUE4221 is a standard PCIe x4 HH card with full height bracket that support PCIe Gen4 x4 and connect to an SFF 8612 OCuLink port, enabling external PCIe expansion. Paired with the OCUD4241, a PCIe device board, this kit allows users to extend the PCIe bus outside of the system—supporting external graphics card or SAS/SATA storage RAID card—without the need to upgrade their existing PC or workstation.
Features
OCuLink Scenario
With RAID Card = External Storage Application(SAS/SATA).
With GPU Card = eSports Application or AI Computing Application.
Application Sturcture
Specifications
Key Applications & Benefits
External GPU Support (eGPU)- Connect high-performance graphics cards for demanding 3D applications, video editing, or immersive gaming.
- Ideal for Mini PC, small form factor PCs, or systems that don’t support internal GPU upgrades.
- Easily connect SAS or SATA RAID/HBA cards to add multiple hard drives or SSDs via external enclosures.
- Perfect for video editing, large-scale backups, media archiving, or data center applications.
- Avoid the cost of a full system upgrade—simply add GPU or storage expansion externally.
- Flexible and modular approach to upgrading: expand only what you need, when you need it.
OCUE4221 Spec.
| Bus | PCIe Gen4x4 | ||
| Interface | SFF 8612 4i 42pin | ||
| Controller | PHISON PS7101 | ||
| Redriver settings | By BIOS or MCU(OCUD4241) | ||
| Form Factor | PCIe low profile PCB | ||
| ESD Protection | ±8KV Air / ±4KV Contact | ||
| Green Product | RoHS, WEEE | ||
| Regulatory Approvals | CE / FCC / VCCI / BSMI | ||
| Operation Temperature | 0 to 50°C (32 to 122°F) | ||
| Operation Humidity | < 85% non-condensing | ||
| Storage Temperature | -20 to 85°C (-4 to 185°F) | ||
| PCB Dimensions | 79.3 x 68.5 mm | ||
| Bracket | Standard 121 mm | ||
OCUD4241 Spec.
| Bus | PCIe Gen4x4 | ||
| Interface | SFF 8612 4i 42pin | ||
| PCIe Slot | PCIe x16 (4 lanes) | ||
| MCU Settings | By I2C set PCIe driving strength | ||
| Form Factor | Mini-ITX PC case supported | ||
| ESD Protection | ±8KV Air / ±4KV Contact | ||
| Green Product | RoHS, WEEE | ||
| Regulatory Approvals | CE / FCC / VCCI / BSMI | ||
| Operation Temperature | 0 to 50°C (32 to 122°F) | ||
| Operation Humidity | < 85% non-condensing | ||
| Storage Temperature | -20 to 85°C (-4 to 185°F) | ||
| PCB Dimensions | 203.2 x 107.2 mm | ||
| I/O Shield | Support standard ATX case | ||
Accessories
Including Accessories

SFF 8611 male to male 100cm external cable
- 100cm
- Part Number:1OCL-PS100AS100001
- 1 pcs.
Optional Accessories

OCuLink Kit - I/O Shielding Panel
- 162x48mm
- Part Number:12PS-OCUD4241XSZ00
- 1 pcs.
Support
Download Datasheet
| Datasheet | OCUEKIT2 Datasheet EN |
|
Download Guide
| Guide | OCUx Series Quick Installation Guide EN |
|
OCUEKIT2
OCUE4221 + OCUD4241 OCuLink Expansion Kit (with full-height bracket)
- Creative professionals needing both high GPU performance and large-capacity storage.
- IT & enterprise users looking to extend SAS/SATA RAID or JBOD systems externally.
- Gamers and power users wanting better performance on compact or older systems.
- Mini PC or laptop users requiring PCIe expansion without internal space for upgrades.
Introduction
OCUE4221 is a standard PCIe x4 HH card with full height bracket that support PCIe Gen4 x4 and connect to an SFF 8612 OCuLink port, enabling external PCIe expansion. Paired with the OCUD4241, a PCIe device board, this kit allows users to extend the PCIe bus outside of the system—supporting external graphics card or SAS/SATA storage RAID card—without the need to upgrade their existing PC or workstation.
Features
OCuLink Scenario
With RAID Card = External Storage Application(SAS/SATA).
With GPU Card = eSports Application or AI Computing Application.
Application Sturcture
Specifications
Key Applications & Benefits
External GPU Support (eGPU)- Connect high-performance graphics cards for demanding 3D applications, video editing, or immersive gaming.
- Ideal for Mini PC, small form factor PCs, or systems that don’t support internal GPU upgrades.
- Easily connect SAS or SATA RAID/HBA cards to add multiple hard drives or SSDs via external enclosures.
- Perfect for video editing, large-scale backups, media archiving, or data center applications.
- Avoid the cost of a full system upgrade—simply add GPU or storage expansion externally.
- Flexible and modular approach to upgrading: expand only what you need, when you need it.
OCUE4221 Spec.
| Bus | PCIe Gen4x4 | ||
| Interface | SFF 8612 4i 42pin | ||
| Controller | PHISON PS7101 | ||
| Redriver settings | By BIOS or MCU(OCUD4241) | ||
| Form Factor | PCIe low profile PCB | ||
| ESD Protection | ±8KV Air / ±4KV Contact | ||
| Green Product | RoHS, WEEE | ||
| Regulatory Approvals | CE / FCC / VCCI / BSMI | ||
| Operation Temperature | 0 to 50°C (32 to 122°F) | ||
| Operation Humidity | < 85% non-condensing | ||
| Storage Temperature | -20 to 85°C (-4 to 185°F) | ||
| PCB Dimensions | 79.3 x 68.5 mm | ||
| Bracket | Standard 121 mm | ||
OCUD4241 Spec.
| Bus | PCIe Gen4x4 | ||
| Interface | SFF 8612 4i 42pin | ||
| PCIe Slot | PCIe x16 (4 lanes) | ||
| MCU Settings | By I2C set PCIe driving strength | ||
| Form Factor | Mini-ITX PC case supported | ||
| ESD Protection | ±8KV Air / ±4KV Contact | ||
| Green Product | RoHS, WEEE | ||
| Regulatory Approvals | CE / FCC / VCCI / BSMI | ||
| Operation Temperature | 0 to 50°C (32 to 122°F) | ||
| Operation Humidity | < 85% non-condensing | ||
| Storage Temperature | -20 to 85°C (-4 to 185°F) | ||
| PCB Dimensions | 203.2 x 107.2 mm | ||
| I/O Shield | Support standard ATX case | ||
Accessories
Including Accessories

SFF 8611 male to male 100cm external cable
- 100cm
- Part Number:1OCL-PS100AS100001
- 1 pcs.
Optional Accessories

OCuLink Kit - I/O Shielding Panel
- 162x48mm
- Part Number:12PS-OCUD4241XSZ00
- 1 pcs.
Support
Download Datasheet
| Datasheet | OCUEKIT2 Datasheet EN |
|
Download Guide
| Guide | OCUx Series Quick Installation Guide EN |
|
OCUEKIT2
OCUE4221 + OCUD4241 OCuLink Expansion Kit (with full-height bracket)
- Creative professionals needing both high GPU performance and large-capacity storage.
- IT & enterprise users looking to extend SAS/SATA RAID or JBOD systems externally.
- Gamers and power users wanting better performance on compact or older systems.
- Mini PC or laptop users requiring PCIe expansion without internal space for upgrades.
OCUE4221 is a standard PCIe x4 HH card with full height bracket that support PCIe Gen4 x4 and connect to an SFF 8612 OCuLink port, enabling external PCIe expansion. Paired with the OCUD4241, a PCIe device board, this kit allows users to extend the PCIe bus outside of the system—supporting external graphics card or SAS/SATA storage RAID card—without the need to upgrade their existing PC or workstation.
Introduction
OCUE4221 is a standard PCIe x4 HH card with full height bracket that support PCIe Gen4 x4 and connect to an SFF 8612 OCuLink port, enabling external PCIe expansion. Paired with the OCUD4241, a PCIe device board, this kit allows users to extend the PCIe bus outside of the system—supporting external graphics card or SAS/SATA storage RAID card—without the need to upgrade their existing PC or workstation.
Features
OCuLink Scenario
With RAID Card = External Storage Application(SAS/SATA).
With GPU Card = eSports Application or AI Computing Application.
Application Sturcture
Specifications
Key Applications & Benefits
External GPU Support (eGPU)- Connect high-performance graphics cards for demanding 3D applications, video editing, or immersive gaming.
- Ideal for Mini PC, small form factor PCs, or systems that don’t support internal GPU upgrades.
- Easily connect SAS or SATA RAID/HBA cards to add multiple hard drives or SSDs via external enclosures.
- Perfect for video editing, large-scale backups, media archiving, or data center applications.
- Avoid the cost of a full system upgrade—simply add GPU or storage expansion externally.
- Flexible and modular approach to upgrading: expand only what you need, when you need it.
OCUE4221 Spec.
| Bus | PCIe Gen4x4 | ||
| Interface | SFF 8612 4i 42pin | ||
| Controller | PHISON PS7101 | ||
| Redriver settings | By BIOS or MCU(OCUD4241) | ||
| Form Factor | PCIe low profile PCB | ||
| ESD Protection | ±8KV Air / ±4KV Contact | ||
| Green Product | RoHS, WEEE | ||
| Regulatory Approvals | CE / FCC / VCCI / BSMI | ||
| Operation Temperature | 0 to 50°C (32 to 122°F) | ||
| Operation Humidity | < 85% non-condensing | ||
| Storage Temperature | -20 to 85°C (-4 to 185°F) | ||
| PCB Dimensions | 79.3 x 68.5 mm | ||
| Bracket | Standard 121 mm | ||
OCUD4241 Spec.
| Bus | PCIe Gen4x4 | ||
| Interface | SFF 8612 4i 42pin | ||
| PCIe Slot | PCIe x16 (4 lanes) | ||
| MCU Settings | By I2C set PCIe driving strength | ||
| Form Factor | Mini-ITX PC case supported | ||
| ESD Protection | ±8KV Air / ±4KV Contact | ||
| Green Product | RoHS, WEEE | ||
| Regulatory Approvals | CE / FCC / VCCI / BSMI | ||
| Operation Temperature | 0 to 50°C (32 to 122°F) | ||
| Operation Humidity | < 85% non-condensing | ||
| Storage Temperature | -20 to 85°C (-4 to 185°F) | ||
| PCB Dimensions | 203.2 x 107.2 mm | ||
| I/O Shield | Support standard ATX case | ||
Accessories
Including Accessories

SFF 8611 male to male 100cm external cable
- 100cm
- Part Number:1OCL-PS100AS100001
- 1 pcs.
Optional Accessories

OCuLink Kit - I/O Shielding Panel
- 162x48mm
- Part Number:12PS-OCUD4241XSZ00
- 1 pcs.
Support
Download Datasheet
| Datasheet | OCUEKIT2 Datasheet EN |
|
Download Guide
| Guide | OCUx Series Quick Installation Guide EN |
|



