We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green PCIe network card with single RJ-45 port and low-profile bracket

Intel

Intel EXPI9301CTBLKProduct Gigabit CT Desktop Adapter switch module

SKU CH-3Q64-BMM1X MPN EXPI9301CTBLKProduct

Gigabit PCIe network adapter with one RJ-45 port supports 10, 100, and 1000 Mbps speeds using the Intel 82574L controller

  • Electrical Outlet Plug TypeGigabit Ethernet Card
  • Auto-negotiation selects the highest network speed up to 1000 Mbps
  • Dedicated PCI Express bus preserves full bandwidth capacity
  • Low-power Intel 82574L controller reduces energy consumption
  • Single RJ-45 port provides straightforward wired connectivity
  • Compact plug-in card fits standard desktop expansion slots

Single-port Gigabit adapter

The Intel EXPI9301CTBLKProduct Gigabit CT Desktop Adapter is a PCI Express plug-in card that adds one RJ-45 port to a desktop PC. It uses the low-power Intel 82574L controller and auto-negotiation to select the highest available link speed. Teaming support lets it serve as an entry-level server adapter. Builders needing multiple ports or fibre connectivity should look elsewhere.

10/100/1000 Mbps headroom

The adapter negotiates at 10, 100, or 1000 Mbps and maintains full bandwidth over the dedicated PCI Express I/O bus. At 1000 Mbps it saturates a single Gigabit link; beyond that the single RJ-45 port and the PCI Express x1 interface become the bottleneck. No higher-speed Ethernet standards are supported by this controller.

PCI Express x1 interface limits

The card plugs into a PCI Express slot and presents a compact profile measuring 4.7" by 4.7" by 2.2". Bandwidth is constrained to the single-lane PCI Express generation implemented by the 82574L controller, so aggregate throughput cannot exceed that lane's capacity. Systems lacking a free PCI Express slot cannot use this adapter.

Highlights

  • Auto-negotiation selects the highest network speed up to 1000 Mbps
  • Dedicated PCI Express bus preserves full bandwidth capacity
  • Low-power Intel 82574L controller reduces energy consumption
  • Single RJ-45 port provides straightforward wired connectivity
  • Compact plug-in card fits standard desktop expansion slots

Specifications

BrandIntel
Electrical Outlet Plug TypeGigabit Ethernet Card

Questions about this item

Will this PCI Express Gigabit CT Desktop Adapter work in my older desktop that only has PCI slots?

No, the host interface is PCI Express so it requires a PCI Express slot; legacy PCI slots are not compatible.

How can I confirm the Intel 82574L controller has negotiated a 1000 Mbps link after I install the card?

Check the link-speed LED on the RJ-45 port or view the adapter status in the operating system network settings to see the negotiated speed.

Does the Intel EXPI9301CTBLK box include a low-profile bracket for small-form-factor cases or must I buy one separately?

The supplied bracket is the standard 4.7-inch height; a low-profile bracket is not included and must be sourced separately if required.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.