Replacement for AC12100-40LC: Drop-In Alternatives We Stock
Looking for a replacement for the AC12100-40LC (AC12100-40LC - Western Digital 2GB 5400RPM ATA-33 3.5-inch Hard Drive)? Pro Disk Network ships Western Digital 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 AC12100-40LC
| SKU | AC12100-40LC |
|---|---|
| Product | AC12100-40LC - Western Digital 2GB 5400RPM ATA-33 3.5-inch Hard Drive |
| Current price | $176.20 |
| Stock status | In Stock |
| Detail page | View AC12100-40LC › |
Drop-in replacements for AC12100-40LC
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.
AC225500-71LA - Western Digital 2GB 5400RPM ATA-33 3.5-inch Hard Drive
SKU: AC225500-71LA
Price: $84.21
AC13200-23RN - Western Digital Caviar 3.2GB 5400RPM ATA-33 512KB Cache 3.5-inch Hard Drive
SKU: AC13200-23RN
Price: $153.26
AC13200 - Western Digital Caviar 3.2GB 5400RPM ATA-33 512KB Cache 3.5-inch Hard Drive
SKU: AC13200
Price: $157.05
AC23200-00LC - Western Digital Caviar 3.2GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive
SKU: AC23200-00LC
Price: $165.79
AC13200-00RNN1 - Western Digital Caviar 3.2GB 5400RPM ATA-33 512KB Cache 3.5-inch Hard Drive
SKU: AC13200-00RNN1
Price: $169.82
AC23200-75LC - Western Digital Caviar 3.2GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive
SKU: AC23200-75LC
Price: $232.25
AC23200-19LB - Western Digital Caviar 3.2GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive
SKU: AC23200-19LB
Price: $232.25
AC23200-60LC - Western Digital Caviar 3.2GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive
SKU: AC23200-60LC
Price: $232.25
WDAC23200 - Western Digital Caviar 3.2GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive
SKU: WDAC23200
Price: $232.25
AC2320071LC - Western Digital Caviar 3.2GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive
SKU: AC23200-71LC
Price: $232.25
WDAC2320060LC - Western Digital Caviar 3.2GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive
SKU: WDAC2320060LC
Price: $232.25
WDAC23200R - Western Digital Caviar 3.2GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive
SKU: WDAC23200R
Price: $232.25
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.