Alternative to USB21000S2: Better-Value Equivalents in Stock
Comparing the USB21000S2 (USB21000S2 - StarTech OneConnect USB 2.0 TO Gigabit Ethernet NIC Network Adapter) against alternatives? Pro Disk Network stocks 12 similar parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the USB21000S2
| SKU | USB21000S2 |
|---|---|
| Product | USB21000S2 - StarTech OneConnect USB 2.0 TO Gigabit Ethernet NIC Network Adapter |
| Current price | $113.68 |
| Stock status | In Stock |
| Detail page | View USB21000S2 › |
Alternatives to USB21000S2
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
USB31000SW - StarTech OneConnect USB 3.0 TO Gigabit Ethernet NIC Network Adapter - Network Adapter - SuperSpeed USB 3.0
SKU: USB31000SW
Price: $75.79
ST1000SPEX42 - StarTech OneConnect 4 Port PCI Express Gigabit Ethernet NIC Network Adapter Card - 4 - Twisted Pair - FULL-HEIGHT
SKU: ST1000SPEX42
Price: $565.32
PEXUSB7LP - StarTech OneConnect 7 Port PCI Express Low Profile HIGH SPEED USB 2.0 Adapter Card - 6 X TYPE A FEMALE USB 2.0 USB External
SKU: PEXUSB7LP
Price: $182.37
PCI220USBLP - StarTech OneConnect 3 Port PCI Low Profile HIGH SPEED USB 2.0 Adapter Card USB Adapter 3 Ports
SKU: PCI220USBLP
Price: $205.26
ST2000PEXPSE - StarTech OneConnect Dual-Port PCI Express Gigabit Ethernet PCI Express Network Card Adapter - POE/PSE - Network Adapter
SKU: ST2000PEXPSE
Price: $263.16
USB32000SPT - StarTech USB 3.0 to Dual Port Gigabit Ethernet Adapter NIC with USB Pass-through2 X RJ45Twisted Pair
SKU: USB32000SPT
Price: $160.00
PEXUSB3S11 - StarTech OneConnect 2 Port PCI Express SuperSpeed USB 3.0 Card - 1 Internal 1 External - USB Adapter
SKU: PEXUSB3S11
Price: $117.89
USB2106S - StarTech OneConnect USB 2.0 TO 10/100Mb/s Ethernet Network Adapter
SKU: USB2106S
Price: $143.39
PEX1000SFP2 - StarTech OneConnect PCI Express Gigabit Ethernet FIBER Network Card W/ OPEN SFP - Network Adapter
SKU: PEX1000SFP2
Price: $289.47
PEX10000SFP - StarTech OneConnect PCI Express 10 Gigabit Ethernet FIBER Network Card - OPEN SFP+ - Network Adapter
SKU: PEX10000SFP
Price: $344.84
ST1000SPEXD4 - StarTech OneConnect Dual-Port Gigabit PCI Express Server Network Adapter Card - Network Adapter
SKU: ST1000SPEXD4
Price: $191.58
EC1000S - StarTech OneConnect ExpressCard Gigabit Ethernet Network Adapter Card
SKU: EC1000S
Price: $303.50
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.