External PCIe expansion
Adds one physical PCIe x16 slot for compatible standard-profile expansion cards.
Add a desktop-style PCIe expansion slot to a Thunderbolt 3 computer while retaining DisplayPort output and downstream Thunderbolt connectivity.

Adds one physical PCIe x16 slot for compatible standard-profile expansion cards.
Thunderbolt 3 provides up to 40Gbps of connection bandwidth for the external chassis.
A dedicated DisplayPort output and downstream Thunderbolt port support additional display connectivity.
The downstream Thunderbolt port can be used for additional Thunderbolt, USB and DisplayPort devices.
The chassis requires a Thunderbolt 3 host. It does not support GPU graphics cards, and compatible PCIe cards must fit the supported profile, size and power limits.
This item is the Australian version supplied by DeviceDeal and is covered by the official StarTech.com 2-year manufacturer warranty in Australia.
Please retain your DeviceDeal tax invoice as proof of purchase. Warranty coverage and claims are subject to StarTech.com warranty terms, eligibility requirements and product assessment.
It adds an external PCI Express slot to a Thunderbolt 3-equipped laptop or desktop and also provides DisplayPort output.
It provides one physical PCIe x16 slot using a PCIe 3.0 x4 interface for compatible standard-profile cards.
The Thunderbolt 3 connection supports up to 40Gbps.
Yes. It includes a DisplayPort output, and its downstream Thunderbolt 3 port can also be used for display connectivity when the required adapter or display is supported.
Yes. The supplied product information supports daisy chaining up to six Thunderbolt 3 devices.
No. The official product specification states that GPU graphics cards are not supported.
The package includes the expansion chassis, Thunderbolt 3 cable, rubber feet, a universal AC adapter with regional power cords including ANZ, and a quick-start guide.
TB31PCIEX16 is covered by a 2-year official StarTech.com manufacturer warranty in Australia, subject to StarTech.com warranty terms and product assessment.
(TB31PCIEX16)
Adds one physical PCIe x16 slot for compatible standard-profile expansion cards.
Thunderbolt 3 provides up to 40Gbps of connection bandwidth for the external chassis.
A dedicated DisplayPort output and downstream Thunderbolt port support additional display connectivity.
The downstream Thunderbolt port can be used for additional Thunderbolt, USB and DisplayPort devices.
Australian version supplied by DeviceDeal. Retain your DeviceDeal tax invoice; warranty coverage is subject to StarTech.com terms, eligibility and product assessment.
StarTech TB31PCIEX16 Thunderbolt 3 PCIe Expansion Chassis with DisplayPort

| Product type | Thunderbolt 3 PCIe expansion chassis |
|---|---|
| Warranty | 2 Years |
| Bus type | Thunderbolt 3 |
|---|---|
| Expansion slot | 1 × PCI Express x16 physical slot; PCIe 3.0 x4 interface |
| Card support | Standard-profile, single-width PCIe cards up to 20.3 cm long |
| Cooling | 1 × 60 mm fan; 14.06 CFM; 24.55 dB |
| Enclosure | Aluminium and steel |
| Maximum data transfer rate | 40 Gbps (Thunderbolt 3) |
|---|---|
| PCIe bandwidth | 3.94 GB/s (x4 PCIe 3.0) |
| Display support | DisplayPort and Thunderbolt 3 outputs support 4K/5K video; 5K requires a Thunderbolt 3 5K display |
| Internal ports | 1 × PCI Express x16 |
|---|---|
| External ports | 2 × Thunderbolt 3 USB-C (40Gbps); 1 × DisplayPort |
| Power source | AC adapter included |
|---|---|
| PCIe slot power | Up to 25W |
| LP4 auxiliary power | Up to 30W across the 12V and 5V rails |
| Power adapter | 12V DC, 5A class, 65W universal adapter |
| Host requirement | Computer equipped with a Thunderbolt 3 port |
|---|---|
| Important limitation | The expansion chassis does not support GPU graphics cards |
| Daisy chaining | Supports daisy chaining of multiple Thunderbolt 3/4 devices; up to six Thunderbolt 3 devices described in the supplied product content |
| Cable length | 500 mm [19.7 in] |
|---|---|
| Dimensions | 28.0 × 14.2 × 8.2 cm [11.0 × 5.6 × 3.2 in] |
| Weight | 1.6 kg [3.6 lb] |
| Operating temperature | 5°C to 35°C |
| Storage temperature | -20°C to 50°C |
| Humidity | 2080% RH |
| Included | Thunderbolt 3 PCIe expansion chassis; Thunderbolt 3 cable; 4 rubber feet; universal AC adapter with regional cords including ANZ; quick-start guide |
|---|
| SKU | TB31PCIEX16 |
| Barcode # | 65030868440 |
| Brand | Startech |
| Shipping Weight | 3.1100kg |
| Shipping Width | 0.100m |
| Shipping Height | 0.050m |
| Shipping Length | 0.350m |
| Shipping Cubic | 0.001750000m3 |
This item is the Australian version supplied by DeviceDeal and is covered by the official StarTech.com 2 years manufacturer warranty in Australia.
Please retain your DeviceDeal tax invoice as proof of purchase.
Warranty coverage and claims are subject to StarTech.com warranty terms, eligibility requirements and product assessment.
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