Replacement for MK4001GRZB: Drop-In Alternatives We Stock
Looking for a replacement for the MK4001GRZB (MK4001GRZB - Toshiba 400GB SAS 6Gbps SLC 2.5-inch Internal Solid State 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 MK4001GRZB
| SKU | MK4001GRZB |
|---|---|
| Product | MK4001GRZB - Toshiba 400GB SAS 6Gbps SLC 2.5-inch Internal Solid State Drive |
| Current price | $1,786.11 |
| Stock status | In Stock |
| Detail page | View MK4001GRZB › |
Drop-in replacements for MK4001GRZB
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.
MK1001GRZB - Toshiba 100GB 6GB/s SLC SAS 2.5-inch SFF Enterprise Solid State Drive
SKU: MK1001GRZB
Price: $791.83
KPM51RUG1T92 - Toshiba Kioxia PM5-R Series 1.92TB SAS 12Gb/s 2.5-inch Internal Solid State Drive
SKU: KPM51RUG1T92
Price: $1,894.74
KPM51RUG7T68 - Toshiba Kioxia PM5-R Series 3.84TB SAS 12Gb/s 2.5-inch Internal Solid State Drive
SKU: KPM51RUG7T68
Price: $4,294.74
KPM51RUG3T84 - Toshiba Kioxia PM5-R Series 3.84TB SAS 12Gb/s 2.5-inch Internal Solid State Drive
SKU: KPM51RUG3T84
Price: $5,008.42
KPM5WVUG1T92 - Toshiba Kioxia 1.9TB TLC SAS 12Gb/s Read Intensive FIPS 140-2 2.5-inch Internal Solid State Drive
SKU: KPM5WVUG1T92
Price: $5,773.68
PX05SMB040 - Toshiba 400GB Multi-Level-Cell SAS 12Gb/s 2.5-inch Solid State Drive
SKU: PX05SMB040
Price: $115.79
PX02SMF040 - Toshiba 400GB 2.5-inch Multi-Level-Cell SAS 12GB/sMixed-Use 10-DPWD Solid State Drive
SKU: PX02SMF040
Price: $131.58
PX05SMB040Y - Toshiba 400GB Multi-Level-Cell SAS 12Gb/s 2.5-inch Solid State Drive
SKU: PX05SMB040Y
Price: $170.53
KPM5XMUG400G - Toshiba Kioxia 400GB SAS 12Gb/s Write Intensive 2.5-inch Solid State Drive
SKU: KPM5XMUG400G
Price: $189.47
PX04SMB040 - Toshiba 400GB Multi-Level-Cell SAS 12GB/s 2.5-inch Solid State Drive
SKU: PX04SMB040
Price: $233.68
SDFA383DAB01 - Toshiba 400GB SAS 12Gb/s 512N 2.5-inch Solid State Drive
SKU: SDFA383DAB01
Price: $254.74
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.