Replacement for 4A300J0: Drop-In Alternatives We Stock
Looking for a replacement for the 4A300J0 (4A300J0 - Maxtor 300GB 5400RPM 2MB Cache ATA/IDE-133 Ultra- Dma 3.5-inch Low Profile (1.0inch) Internal Hard Drive)? 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 4A300J0
| SKU | 4A300J0 |
|---|---|
| Product | 4A300J0 - Maxtor 300GB 5400RPM 2MB Cache ATA/IDE-133 Ultra- Dma 3.5-inch Low Profile (1.0inch) Internal Hard Drive |
| Current price | $85.63 |
| Stock status | In Stock |
| Detail page | View 4A300J0 › |
Drop-in replacements for 4A300J0
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.
6Y200L0 - Maxtor DiamondMax 200GB 7200RPM IDE Ultra ATA/133 (ATA-7) 2MB Cache 3.5-inch Hard Drive
SKU: 6Y200L0
Price: $290.37
4R040L0 - Maxtor 40GB 5400RPM 2MB Cache ATA/IDE Ultra-dma-133 3.5-inch Internal Hard Drive
SKU: 4R040L0
Price: $99.11
2F030L0 - Maxtor 30GB 5400RPM 2MB Cache ATA/IDE Ultra-dma-133 3.5-inch Low Profile (1.0inch) Internal Hard Drive
SKU: 2F030L0
Price: $99.74
4R080J0 - Maxtor 80GB 5400RPM 2MB Cache Diamondmax-16 ATA/IDE Ultra-dma-133 3.5-inch Low Profile (1.0inch) Internal Hard Drive
SKU: 4R080J0
Price: $110.00
4G120J6 - Maxtor DiamondMax D540X 120GB 5400RPM IDE / ATA-133 2MB Cache 3.5-inch Hard Drive
SKU: 4G120J6
Price: $164.34
5A320J0 - Maxtor 320GB 5400RPM Ultra IDE / ATA-133 2MB Cache 3.5-inch Hard Drive
SKU: 5A320J0
Price: $189.47
5A250J0 - Maxtor Maxline Plus Ii 250GB 5400RPM 40-Pin 2MB Cache ATA/IDE-133 3.5-inch Low Profile (1.0inch) Internal Hard Drive
SKU: 5A250J0
Price: $208.42
4R060L0 - Maxtor 60GB 5400RPM 2MB Cache ATA/IDE Ultra- Dma-133 3.5-inch Low Profile (1.0inch) Internal Hard Drive
SKU: 4R060L0
Price: $250.53
2F040J0 - Maxtor Fireball 3 40GB 5400RPM IDE / ATA-133 2MB Cache 3.5-inch Hard Drive
SKU: 2F040J0
Price: $347.50
5A300J0 - Maxtor 300GB 5400RPM 2MB Cache EIDE/ATA-133 Maxline-II Hard Drive Hard Drive
SKU: 5A300J0
Price: $335.76
5A300J00810R4 - Maxtor MaXLine II 300GB 5400RPM ATA-133 2MB Cache 3.5-inch Hard Drive
SKU: 5A300J00810R4
Price: $338.95
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.