Skip to main content
Shop by category
Shop by category
Enter your search keyword
All Categories
Advanced
Hi (
Sign in
to bid or buy)
Daily Deals
Brand Outlet
Gift Cards
Help & Contact
Sell
Watchlist
Expand Watch List
Loading...
Sign in
to see your user information
My eBay
Expand My eBay
Summary
Recently Viewed
Bids/Offers
Watchlist
Purchase History
Buy Again
Selling
Saved Searches
Saved Sellers
My Garage
My Sizes
Messages
Collection beta
The eBay vault
Notification
Expand Cart
Loading...
Something went wrong. View cart for details.
{"delay":300}
breadcrumb
eBay
Electronics
Computers/Tablets & Networking
Home Networking & Connectivity
Electronics
Computers/Tablets & Networking
Home Networking & Connectivity
Modems
3Com Serial (RS-232) Computer Modems
3Com Serial (RS-232) Computer Modems
Shop by Category
Home Networking & Connectivity
Modems
Boosters, Extenders & Antennas
Mobile Broadband Devices
Modem-Router Combos
Other Home Networking
Powerline Networking
USB Bluetooth Adapters/Dongles
USB Wi-Fi Adapters/Dongles
VoIP Home Phones
VoIP Phone Adapters
Wired Routers
Wireless Access Points
Wireless Routers
All Listings
Auction
Buy It Now
Best Match
Best Match
Time: ending soonest
Time: newly listed
Price + Shipping: lowest first
Price + Shipping: highest first
Distance: nearest first
List View
Gallery View
4 Results
2 filters applied
Brand
Ports
Type
Color
Condition
Price
Buying Format
3com US Robotics RS-232 RS232 Quad Analog NIC (Lot of 2) 69-000385-01
Pre-Owned
·
3Com
$50.00
$12.88 shipping
3Com Courier 3453 3CP3453 56K Analog Corporate External Business Modem RS232
Pre-Owned
·
3Com
$31.50
Was:
$35.00
was - US $35.00
or Best Offer
3com RS-232 RS232 Quad Analog NIC - 69-000385-01
Pre-Owned
·
3Com
$50.00
or Best Offer
$8.74 shipping
NEW 3Com 3453 56K Courier External Business Modem RS232 w/ Power Supply
Open Box
·
3Com
$62.99
or Best Offer
$43.39 shipping
You May Also Like
NETGEAR Mobile Broadband Devices
Cisco Enterprise Networking and Servers
Cisco Wired Routers
NETGEAR Unlocked Mobile Broadband Devices
NETGEAR Cable Computer Modems
Server Power Supplies
3Com Wireless Access Point
3Com Home Network Wireless Routers
TP-LINK Enterprise Networking and Servers
3Com Computer Modem-Router Combos