StarTech.com ST1000SPEX43 - 4-Port PCIe Gigabit Network Adapter Card
Features
4-Port PCIe Gigabit Network Adapter Card
Add four Gigabit Ethernet ports to a client, server or workstation through one PCI Express slot
- Add four independent Gigabit RJ45 ports to connect to multiple networks for high-bandwidth workstations and servers
- Realtek RTL8111G chipset for reliable performance
- Supports full-duplex flow control
- Fully compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab networks
- Supports autonegotiation with next-page capacity
- Crossover detection and auto-correction (Auto-MDIX)
- Up to 9K jumbo frame support
- Support for IEEE 802.1Q VLAN tagging and IEEE 802.1P layer 2 priority encoding
- Microsoft NDIS5 checksum offload (IP, TCP, UDP) and large send offload support
Now you can add four separate Gigabit network ports to your client, server or workstation through just one PCI Express slot, to provide connectivity to multiple networks without draining your budget.
Reliable connectivity to multiple networks
This 4-port network card delivers powerful connectivity for your business, corporate or government office environment, with support for high-performance, 4-channel networking and a maximum throughput of up to 1000Mbps in each direction (2000 Mbps total). The network adapter card features the Realtek RTL8111G chipset, which is designed to deliver the performance and enhanced capabilities you need for reliable network connections to your server or computer.
A versatile and cost-effective solution
This versatile quad-port network card is ideal for many business applications requiring upgrades to servers or workstations, adding feature-rich Gigabit networking with four independent ports. Compatible with a broad range of operating systems, this cost-effective PCIe Gigabit NIC is suitable for many SMB and Enterprise applications such as virtualized environments that require multiple NICs (check your VM software for chipset compatibility).
The ST1000SPEX43 is backed by a StarTech.com 2-year hardware warranty and free lifetime technical support.
Applications
- Provides simultaneous access to multiple networks for desktop PC clients, servers, and workstations that have a limited number of PCI Express slots available
- Maximizes the number of RJ45 ports within a system or high-end workstations and servers
- Ideal for VM environments with multiple operating systems, requiring shared or dedicated NICs
- Provides redundant connectivity to ensure an uninterrupted network connection
Compatibility

Windows® XP, 7, 8, 8.1, 10
Windows Server® 2003, 2012, 2016, 2019
Linux Kernel 2.4.x to 4.11.x LTS Versions only
Specifications
Technical Specifications
| 1 - Connector Type(s) | PCI Express x4 |
|---|---|
| 4 - External Ports | RJ-45 |
| Operating Temperature | 0°C to 55°C (32°F to 131°F) |
| Storage Temperature | -40°C to 75°C (-40°F to 167°F) |
| Humidity | 5% ~ 95% RH |
| Ports | 4 |
| Interface | RJ45 (Gigabit Ethernet) |
| Bus Type | PCI Express |
| Card Type | Standard Profile |
| Industry Standards | Compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab |
| Chipset ID | Realtek - RTL8111G |
| 4 - LED Indicators | LinkActivity |
| Package Height | 1.6 in [40 mm] |
| Package Length | 5.7 in [14.5 cm] |
| Shipping (Package) Weight | 6.5 oz [184 g] |
| Package Width | 8.2 in [20.9 cm] |
| Maximum Data Transfer Rate | 2000Mbps (Full Duplex) |
| Compatible Networks | 10/100/1000 Mbps |
| Auto MDIX | Yes |
| Full Duplex Support | Yes |
| Jumbo Frame Support | 9K max. |
| Promiscuous Mode | Yes |
| Weight of Product | 3.4 oz [95 g] |
| Color | Yellow |
| Material | Steel |
| Product Length | 5.4 in [13.8 cm] |
| Product Width | 4.7 in [12 cm] |
| Product Height | 0.7 in [18 mm] |
| OS Compatibility | Windows® XP, 7, 8, 8.1, 10Windows Server® 2003, 2012, 2016, 2019Linux Kernel 2.4.x to 4.11.x LTS Versions only |
| System and Cable Requirements | Available PCI Express x4 or higher (x8, x16) slot |
| 1 - Included in Package | PCIe Gigabit network card - 4 port |
| Brand | StarTech.com |
|---|---|
| Product Type | Networking > Network Cards |
| Weight | 0.045 kg |
| Warranty |
|---|
Note:
Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.
Shipping Information
- Free NZ-wide shipping on orders over $299
- Standard delivery 2–5 business days
- Rural delivery may take an additional 1–2 days
- Same-day dispatch for orders placed before 2pm (weekdays)
Returns Policy
- 7-day returns on unused items in original packaging
- Faulty or damaged products covered under warranty
- Contact our support team to initiate a return









