Replacement for QML40000LDA: Drop-In Alternatives We Stock
Looking for a replacement for the QML40000LDA (QML40000LDA - Quantum 40 GB 3.5 Internal Hard Drive - IDE Ultra ATA/100 (ATA-6) - 4500 rpm - 128 KB Buffer)? 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 QML40000LDA
| SKU | QML40000LDA |
|---|---|
| Product | QML40000LDA - Quantum 40 GB 3.5 Internal Hard Drive - IDE Ultra ATA/100 (ATA-6) - 4500 rpm - 128 KB Buffer |
| Current price | $392.99 |
| Stock status | In Stock |
| Detail page | View QML40000LDA › |
Drop-in replacements for QML40000LDA
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.
F5U098V - Belkin Ultra ATA/133 PCI Card - 2 x 40-pin IDC Ultra ATA/133 (ATA-7) Ultra ATA Internal
SKU: F5U098V
Price: $161.89
QML10200LBA - Quantum 10 GB 3.5 Internal Hard Drive - IDE Ultra ATA/66 (ATA-5) - 5400 rpm - 512 KB Buffer
SKU: QML10200LBA
Price: $286.99
33L5044 - Lenovo 20.40 GB 3.5 Internal Hard Drive - Retail - IDE Ultra ATA/66 (ATA-5) - 7200 rpm - 512 KB Buffer
SKU: 33L5044
Price: $77.12
6Y040L0 - Maxtor DiamondMax Plus 9 40 GB 3.5 Internal Hard Drive - IDE Ultra ATA/133 (ATA-7) - 7200 rpm - 2 MB Buffer
SKU: 6Y040L0
Price: $84.41
MHT2060AH - Toshiba Mobile MHT-AH 60 GB 2.5 Internal Hard Drive - 1 Pack IDE Ultra ATA/100 (ATA-6) - 5400 rpm - 8 MB Buffer
SKU: MHT2060AH
Price: $128.84
HDD2D10 - Toshiba MK4032GAX 40 GB 2.5 Internal Hard Drive - IDE Ultra ATA/100 (ATA-6) - 5400 rpm - 8 MB Buffer
SKU: HDD2D10
Price: $128.95
MK4009GAL - Toshiba 40 GB 1.8 Internal Hard Drive - IDE Ultra ATA/100 (ATA-6) - 4200 rpm - 8 MB Buffer
SKU: MK4009GAL
Price: $129.51
201066-B21 - Compaq 40 GB 3.5 Internal Hard Drive - 1 Pack - IDE Ultra ATA/100 (ATA-6) - 7200 rpm - 128 KB Buffer
SKU: 201066-B21
Price: $144.58
MK4004GAH - Toshiba MK4004GAH 40 GB 1.8 Internal Hard Drive - OEM - IDE Ultra ATA/100 (ATA-6) - 4200 rpm - 2 MB Buffer
SKU: MK4004GAH
Price: $145.62
HDD1682 - Toshiba MK4009GAL 40 GB 1.8 Internal Hard Drive - IDE Ultra ATA/100 (ATA-6) - 4200 rpm - 8 MB Buffer
SKU: HDD1682
Price: $163.74
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.