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Green circuit board with silver RJ45 port and gold PCIe edge connector

STARTECH

STARTECH ST1000SPEX2 PCIe Gigabit network card

SKU CH-5X0M-JV1BN MPN ST1000SPEX2

Adds a 10/100/1000Mbps RJ45 Ethernet port via PCI Express x1 with low-profile bracket, IEEE 802.3 standards compliance, VLAN tagging, jumbo frames, Wake-on-LAN and auto MDI/MDI-X

  • StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.3ab
  • Speed10/100/1000Mbps
  • Connectors1 x RJ45
  • InterfacePCI Express x1
  • LEDsLink/Activity (Green) Gigabit Detect (Yellow)
  • TemperatureOperating Temperature: 0°C to 70°C (32°F to 158°F) Storage T

Option PCIe 1 Gbps - 1 Port RJ45

Struck-through versions exist but are not stocked here.

  • Adds a 10/100/1000 Mbps Ethernet port via PCI Express x1
  • Gigabit detection and Link/Activity LEDs show link status at a glance
  • Compliant with IEEE 802.3, 802.3u, 802.3x and 802.3ab standards
  • Supports VLAN tagging, Layer 2 priority encoding and full-duplex flow control
  • Wake-on-LAN and Auto MDI/MDI-X enable remote wake and automatic crossover correction

What this card adds

The ST1000SPEX2 installs in a PCI Express x1 slot and provides a single 10/100/1000 Mbps RJ45 port. It is a low-profile design that fits compact servers, workstations or desktop PCs. A second bracket is included for full-height chassis. The card is new and ready for immediate deployment.

Limits of the PCIe x1 link

Throughput is capped by the single-lane PCI Express connection and the IEEE 802.3ab Gigabit Ethernet standard. The bus will not deliver multi-gigabit rates, so aggregated workloads above one gigabit per second will saturate the link. Jumbo frames and full-duplex flow control help efficiency but cannot exceed the physical ceiling.

Deciding spec — one port only

The card adds exactly one Ethernet connection. Systems that require dual or quad ports for teaming, failover or separate networks need a different adapter. If a single Gigabit drop satisfies the design, this part fits; otherwise it does not.

Highlights

  • Adds a 10/100/1000 Mbps Ethernet port via PCI Express x1
  • Gigabit detection and Link/Activity LEDs show link status at a glance
  • Compliant with IEEE 802.3, 802.3u, 802.3x and 802.3ab standards
  • Supports VLAN tagging, Layer 2 priority encoding and full-duplex flow control
  • Wake-on-LAN and Auto MDI/MDI-X enable remote wake and automatic crossover correction

Specifications

BrandStarTech.com
ModelST1000SPEX2
StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.3ab
Speed10/100/1000Mbps
Connectors1 x RJ45
InterfacePCI Express x1
LEDsLink/Activity (Green)
Gigabit Detect (Yellow)
TemperatureOperating Temperature: 0°C to 70°C (32°F to 158°F)
Storage Temperature: 0°C to 100°C (32°F to 212°F)
Humidity10 % ~ 90 % (Non-condensing)
FeaturesThe ST1000SPEX2 PCIe Gigabit Ethernet Network Card adds a 10/100/1000 Mbps compatible RJ45 Ethernet port to a PCI Express-enabled client, server or workstation, providing a convenient addition or replacement networking interface.
Compliant with IEEE 802.3/u/ab standards, and with support for 9K Jumbo Frames, VLAN tagging and Wake on LAN (WOL), this versatile Gigabit NIC/Server Adapter delivers rock-solid performance.
Plus, the card includes both full profile and low profile/half-height installation brackets for installation in a wide range of computer/server chassis, regardless of fo
Dimensions2.70" x 4.70" x 0.70"
Weight1.3 oz.
Package Contents1 Port PCI Express PCIe Gigabit Network Server Adapter NIC Card - Dual Profile
1 x Low Profile Bracket
1 x Driver CD
1 x Instruction Manual
Shipping weight0.13 kg
Package size170 × 140 × 28 mm

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Questions about this item

Should I choose the standard bracket or the low-profile bracket included in the package?

The card ships with both a standard and a low-profile bracket, so you can fit it into either a full-height or a slim chassis without extra parts.

What real-world throughput can I expect from the 1000Mbps rating on a PCI Express x1 slot?

The PCIe x1 interface provides ample bandwidth for full line-rate gigabit traffic, so sustained transfers will sit near the 1000Mbps ceiling in typical desktop or server workloads.

Which IEEE standards does the card support and what do they cap in practice?

It complies with IEEE 802.3, 802.3u, 802.3x and 802.3ab, enabling 10, 100 and 1000Mbps operation, full-duplex flow control and jumbo frames on the RJ45 link.

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