IBM
IBM 19K4885Product Fast Ethernet switch module 10/100Base-TX PCI 1 port
Adds 10/100Base-TX networking via a single RJ-45 port on a PCI plug-in card for PCs
- Fast 10/100 Ethernet via single RJ-45 port
- PCI host interface fits legacy desktop systems
- Auto-negotiation selects 10 or 100 Mbps automatically
- Full-duplex flow control reduces network collisions
- Compact 4.7" by 5.4" plug-in card fits tight cases
Low-cost 10/100 PCI network card
The IBM 19K4885 adds a single RJ-45 port to a desktop PC through a standard PCI slot. It targets users who need basic wired connectivity on older systems without integrated Ethernet. The card supports 10BASE-T and 100BASE-TX speeds with auto-negotiation. It is not for buyers who require gigabit throughput or a modern PCI Express interface.
Passive cooling and minimal power draw
The plug-in card operates without a fan, so it adds no audible noise to the system. Power consumption stays low because the Intel Pro/100VE controller is designed for entry-level desktop use. Full-duplex flow control under IEEE 802.3x helps prevent packet loss during normal traffic. The compact 4.7 by 5.4 inch form factor fits most standard chassis.
Steady throughput under continuous load
Sustained file transfers hold at the negotiated 100 Mbps rate without thermal throttling. The single-port design means all bandwidth is dedicated to one link, avoiding contention. Auto-negotiation re-establishes the best speed if the link partner changes. Builders needing multiple ports or higher sustained bandwidth should select a multi-port gigabit adapter instead.
Highlights
- Fast 10/100 Ethernet via single RJ-45 port
- PCI host interface fits legacy desktop systems
- Auto-negotiation selects 10 or 100 Mbps automatically
- Full-duplex flow control reduces network collisions
- Compact 4.7" by 5.4" plug-in card fits tight cases
Specifications
| Brand | IBM |
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Questions about this item
How do I install the IBM 19K4885 Intel Pro/100VE Fast Ethernet Card in a PCI slot?
Power off the PC, remove the bracket, align the card's gold edge connector with the PCI slot, press firmly until fully seated, then secure the bracket screw.
What maintenance or replacement will the 19K4885 card need later?
No scheduled maintenance is required; if the RJ-45 port fails or the card no longer links at 10/100Base-TX, replace the card.
What limit appears first on the 19K4885 under sustained network load?
The 100 Mbps bandwidth ceiling of the 10/100Base-TX interface is the first bottleneck during sustained transfers.
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