Replacement for GM21TB: Drop-In Alternatives We Stock
Looking for a replacement for the GM21TB (GM21TB - Gigabyte Technology 1TB PCI Express 3.0 x4 M.2 2280 Solid State 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 GM21TB
| SKU | GM21TB |
|---|---|
| Product | GM21TB - Gigabyte Technology 1TB PCI Express 3.0 x4 M.2 2280 Solid State Drive |
| Stock status | In Stock |
| Detail page | View GM21TB › |
Drop-in replacements for GM21TB
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.
GP-GSM2NE3100TNTD - Gigabyte Technology 1TB PCI Express 3.0 x4 NVMe M.2 2280 Solid State Drive
SKU: GP-GSM2NE3100TNTD
Price: $291.79
GP-ASM2NE6100TTTD - Gigabyte Technology Aorus NVMe Gen4 1TB Triple-Level Cell PCI Express 4.0 x4 NvMe M.2 2280 Solid State Drive
SKU: GP-ASM2NE6100TTTD
Price: $480.21
GP-AG41TB - Gigabyte Technology Aorus Gen4 1TB Triple-Level Cell PCI Express 4.0 x4 M.2 2280 Solid State Drive
SKU: GP-AG41TB
Price: $493.93
GP-AG70S1TB - Gigabyte Technology Aorus Gen4 7000s 1TB Triple-Level Cell PCI Express 4.0 x4 M.2 2280 Solid State Drive
SKU: GP-AG70S1TB
Price: $548.82
GP-GSM2NE3128GNTD - Gigabyte Technology 128GB PCI Express 3.0 x4 NvMe M.2 2280 Solid State Drive
SKU: GP-GSM2NE3128GNTD
Price: $205.26
GP-GSM2NE3256GNTD - Gigabyte Technology 256GB PCI Express 3.0 x4 NvMe M.2 2280 Solid State Drive
SKU: GP-GSM2NE3256GNTD
Price: $226.08
GP-GSM2NE3512GNTD - Gigabyte Technology 512GB PCI Express 3.0 x4 NvMe M.2 2280 Solid State Drive
SKU: GP-GSM2NE3512GNTD
Price: $256.42
GP-ASM2NE2512GTTDR - Gigabyte Technology Aorus RGB NVMe 512GB Triple-Level Cell PCI-Express 3.0 x4 NvMe 512MB Cache M.2 2280 Solid State Drive
SKU: GP-ASM2NE2512GTTDR
Price: $336.88
GP-AG4500G - Gigabyte Technology Aorus Gen4 500GB Triple-Level Cell PCI Express 4.0 x4 M.2 2280 Solid State Drive
SKU: GP-AG4500G
Price: $429.83
GP-ASM2NE6500GTTD - Gigabyte Technology Aorus NvMe Gen4 500GB Triple-Level Cell PCI Express 4.0 x4 NvMe M.2 2280 Solid State Drive
SKU: GP-ASM2NE6500GTTD
Price: $437.20
GP-GSM2NE8128GNTD - Gigabyte Technology 128GB PCI Express 3.0 x2 M.2 2280 Solid State Drive
SKU: GP-GSM2NE8128GNTD
Price: $478.42
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.