Replacement for AT-9812T-L3-10: Drop-In Alternatives We Stock
Looking for a replacement for the AT-9812T-L3-10 (Allied AT-9812T/L3-10 Telesis AT 9812T Ethernet Switch 12 x 1000Base-T 4 x GBIC Ethernet 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 AT-9812T-L3-10
| SKU | AT-9812T-L3-10 |
|---|---|
| Product | Allied AT-9812T/L3-10 Telesis AT 9812T Ethernet Switch 12 x 1000Base-T 4 x GBIC Ethernet Switch |
| Stock status | In Stock |
| Detail page | View AT-9812T-L3-10 › |
Drop-in replacements for AT-9812T-L3-10
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.
AT-8012M-QS-10 - Allied Telesis Managed Ethernet Switch 12 x 10/100Base-TX LAN 1 x Expansion Slot(s) Managed Ethernet Switch
SKU: AT-8012M-QS-10
Price: $344.33
AT-8012M-QS - Allied Telesis Managed Ethernet Switch 12 x 10/100Base-TX LAN 1 x Expansion Slot(s) Managed Ethernet Switch
SKU: AT-8012M-QS
Price: $344.33
AT-8012M-10 - Allied Telesis Ethernet Switch 12 x 10/100Base-TX 1 x Expansion Slot(s) Ethernet Switch
SKU: AT-8012M-10
Price: $392.99
AT-8012M - Allied Telesis Ethernet Switch 12 x 10/100Base-TX 1 x Expansion Slot(s) Ethernet Switch
SKU: AT-8012M
Price: $392.99
DGS-1248T - D-Link Web Smart 48-Port + 4 Combo SFP Layer 2 Ethernet Switch 48 x 10/100/1000Base-T LAN 4 x SFP (mini-GBIC) Ethernet Switch
SKU: DGS-1248T
Price: $395.34
GSM712F - Netgear Ethernet Switch 4 x 10/100/1000Base-T 8 x 1000Base-SX 4 x GBIC Ethernet Switch
SKU: GSM712F
Price: $1,027.42
C1G124-24 - Enterasys Matrix Ethernet Switch 24 x 10/100Base-TX 4 x SFP (mini-GBIC) Ethernet Switch
SKU: C1G124-24
Price: $2,670.32
C1G124-24-G - Enterasys Matrix Ethernet Switch 24 x 10/100Base-TX 4 x SFP (mini-GBIC) Ethernet Switch
SKU: C1G124-24-G
Price: $2,670.32
A2H124-24FX - Enterasys SecureStack Ethernet Switch 24 x 100Base-FX 2 x 10/100/1000Base-T LAN 2 x SFP (mini-GBIC) Ethernet Switch
SKU: A2H124-24FX
Price: $8,594.53
Allied AT-2712LX20/SC-901 Telesis 100Mbps PCI Express Secure Fast Ethernet Fiber Adapter Card
SKU: AT-2712LX20-SC-901
Price: $517.12
J4878-61201 - HP ProCurve Switch XL 4 x Ports 10/100/1000Base-T (mini-GBIC) Gigabit Ethernet Network Switch Expansion Module
SKU: J4878-61201
Price: $235.79
B2H124-48P - Enterasys SecureStack B2 Switch 48 x 10/100Base-TX LAN 4 x GBIC Ethernet Switch
SKU: B2H124-48P
Price: $357.09
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.