Replacement for MK4021GAS-NDW-R: Drop-In Alternatives We Stock
Looking for a replacement for the MK4021GAS-NDW-R (MK4021GAS-NDW-R - Toshiba Mk4021gas 40GB Udma/100 4200RPM 2MB 2.5 Ide Hard Drive)? Pro Disk Network ships Toshiba 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 MK4021GAS-NDW-R
| SKU | MK4021GAS-NDW-R |
|---|---|
| Product | MK4021GAS-NDW-R - Toshiba Mk4021gas 40GB Udma/100 4200RPM 2MB 2.5 Ide Hard Drive |
| Current price | $250.79 |
| Stock status | In Stock |
| Detail page | View MK4021GAS-NDW-R › |
Drop-in replacements for MK4021GAS-NDW-R
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.
HDD2G12 - Toshiba 60GB 4200RPM 8MB Cache UDMA / 133 ATA-7 2.5-inch Hard Drive
SKU: HDD2G12
Price: $172.62
HDD1622 - Toshiba 40GB 4200RPM IDE / ATA-100 2MB Cache 1.8-inch Hard Drive
SKU: HDD1622
Price: $105.17
MK4007GAL - Toshiba 40GB 4200RPM IDE / ATA-100 2MB Cache 1.8-inch Hard Drive
SKU: MK4007GAL
Price: $125.47
P000364110 - Toshiba 40GB 4200RPM IDE Ultra ATA-100 2MB Cache 9.5mm 2.5-Inch Notebook Hard Disk Drive
SKU: P000364110
Price: $125.47
HDD2182B - Toshiba 40GB 4200RPM IDE Ultra ATA-100 2MB Cache 9.5mm 2.5-Inch Notebook Hard Disk Drive
SKU: HDD2182B
Price: $125.47
P000364090 - Toshiba 40GB 4200RPM IDE Ultra ATA-100 2MB Cache 9.5mm 2.5-Inch Notebook Hard Disk Drive
SKU: P000364090
Price: $125.47
HDD2182P - Toshiba 40GB 4200RPM IDE Ultra ATA-100 2MB Cache 9.5mm 2.5-Inch Notebook Hard Disk Drive
SKU: HDD2182P
Price: $125.47
K000002260 - Toshiba 40GB 4200RPM IDE Ultra ATA-100 2MB Cache 9.5mm 2.5-Inch Notebook Hard Disk Drive
SKU: K000002260
Price: $150.22
V000011550 - Toshiba 40GB 4200RPM IDE Ultra ATA-100 2MB Cache 9.5mm 2.5-Inch Notebook Hard Disk Drive
SKU: V000011550
Price: $159.74
HDD2182CZE01 - Toshiba 40GB 4200RPM IDE Ultra ATA-100 2MB Cache 9.5mm 2.5-Inch Notebook Hard Disk Drive
SKU: HDD2182CZE01
Price: $186.21
MK4021GAS - Toshiba 40GB 4200RPM IDE Ultra ATA-100 2MB Cache 9.5mm 2.5-Inch Notebook Hard Disk Drive
SKU: MK4021GAS
Price: $206.20
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.