Replacement for ST3400833AS: Drop-In Alternatives We Stock
Looking for a replacement for the ST3400833AS (ST3400833AS - Seagate BarraCuda 7200.9 400GB 7200RPM SATA 3Gb/s 8MB Cache 3.5-inch Hard Drive)? Pro Disk Network ships Seagate 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 ST3400833AS
| SKU | ST3400833AS |
|---|---|
| Product | ST3400833AS - Seagate BarraCuda 7200.9 400GB 7200RPM SATA 3Gb/s 8MB Cache 3.5-inch Hard Drive |
| Current price | $392.99 |
| Stock status | In Stock |
| Detail page | View ST3400833AS › |
Drop-in replacements for ST3400833AS
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.
9BD135-761 - Seagate BarraCuda 7200.9 400GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BD135-761
Price: $177.55
9BD135-520 - Seagate BarraCuda 7200.9 400GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BD135-520
Price: $177.55
9BD135-340 - Seagate BarraCuda 7200.9 400GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BD135-340
Price: $177.55
9BD135-065 - Seagate BarraCuda 7200.9 400GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BD135-065
Price: $177.55
9BD135-301 - Seagate BarraCuda 7200.9 400GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BD135-301
Price: $177.55
9BD135-303 - Seagate BarraCuda 7200.9 400GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BD135-303
Price: $177.55
9BD135-304 - Seagate BarraCuda 7200.9 400GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BD135-304
Price: $177.55
9BJ134-622 - Seagate BarraCuda 7200.1 400GB 7200RPM SATA 3Gb/s 8MB Cache 3.5-inch Hard Drive
SKU: 9BJ134-622
Price: $217.58
9BJ134-621 - Seagate BarraCuda 7200.1 400GB 7200RPM SATA 3Gb/s 8MB Cache 3.5-inch Hard Drive
SKU: 9BJ134-621
Price: $247.58
ST3400820AS - Seagate BarraCuda 400GB 7200RPM SATA 3Gb/s 3.5-inch 8MB Cache Hard Drive
SKU: ST3400820AS
Price: $256.42
ST3400320AS - Seagate BarraCuda 400GB 7200RPM SATA 3Gb/s 8MB Cache 3.5-inch Hard Drive
SKU: ST3400320AS
Price: $388.58
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.