Replacement for 3C16951US: Drop-In Alternatives We Stock
Looking for a replacement for the 3C16951US (3C16951US - 3Com SuperStack II 1100 12-Port RJ-45 100Base-TX/10Base-T Fast Ethernet Full-Duplex Half-Duplex Stackable Switch)? Pro Disk Network ships drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the 3C16951US
| SKU | 3C16951US |
|---|---|
| Product | 3C16951US - 3Com SuperStack II 1100 12-Port RJ-45 100Base-TX/10Base-T Fast Ethernet Full-Duplex Half-Duplex Stackable Switch |
| Stock status | In Stock |
| Detail page | View 3C16951US › |
Drop-in replacements for 3C16951US
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.
NC3121 - HP / Compaq Single-Port 100Mb/s 10Base-T/100Base-TX RJ-45 Fast Ethernet PCI Network Adapter
SKU: NC3121
Price: $71.58
NC3120 - HP 1-Port RJ-45 100Mb/s 10Base-T/100Base-TX Fast Ethernet PCI Network Adapter
SKU: NC3120
Price: $182.37
FS728TLP - NetGear 24-Port 10/100Mbps RJ-45 Manageable Desktop Rack-mountable Ethernet Switch with 12x RJ-45 PoE-Port
SKU: FS728TLP
Price: $296.30
323556-001 - HP / Compaq NC3121 10/100TX RJ-45 Fast Ethernet PCI Network Card
SKU: 323556-001
Price: $71.58
HP J9086AX ProCurve 2610 Series 2610-24/12PWR 12 x RJ-45 Ports PoE 10/100Base-TX + 12 x RJ-45 Ports + 2 x Dual Personality RJ-45/SFP (miniGBIC) Ports Layer 2 Managed Rack-mountable Fast Ethernet Netwo
SKU: J9086AX
Price: $145.26
AL2012A45-E5 - Nortel Ethernet Switch 325-24T 24 Ports EN Fast EN 10Base-T 100Base-TX 1U
SKU: AL2012A45-E5
Price: $457.47
4513-630 - Lexmark E460DN 40ppm 1200 x 1200dpi USB Fast Ethernet WiFi Monochrome Laser Printer
SKU: 4513-630
Price: $481.55
30G0107 - Lexmark T650DTN Laser Printer Monochrome 45 ppm Mono 1200 x 1200 dpi USB Fast Ethernet PC Mac
SKU: 30G0107
Price: $982.21
174712X - IBM EXP2512 DAS Hard Drive Array - 12 x Total Bays - Fast Ethernet - Network (RJ-45) - 2U Rack-mountable
SKU: 174712X
Price: $1,815.43
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.