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| Product | Samsung 840 Pro (256GB) | Samsung 840 Pro (128GB) | Samsung 840 (250GB, SSD) |
| Price | $229.00 to $434.17 | $129.99 to $1,466.86 | $164.99 to $321.95 |
| CNET editors' rating | 4 stars | 4 stars | 3.5 stars |
| Average user rating | 5 stars | 0 stars | 0 stars |
| Release date | Info unavailable | Info unavailable | Info unavailable |
| Bottom line | The Samsung 840 Pro lives up to its name: it's a top-notch solid-state drive for professionals with a price to match. | The Samsung 840 Pro lives up to its name: it's a top-notch solid-state drive for professionals with a price to match. | The Samsung 840 series is an excellent entry-level solid-state drive for budget and general users, but not really a good buy for advanced or professional users. |
| Product Description | Samsung 840 Pro Series MZ-7PD256 - Solid state drive - 256 GB - Serial ATA-600 | Samsung 840 Pro Series MZ-7PD128 - Solid state drive - 128 GB - Serial ATA-600 | Samsung 840 Series MZ-7TD250 - Solid state drive - 250 GB - Serial ATA-600 |
| Packaged Quantity | 1 | 1 | 1 |
| Type | Solid state drive - Internal hard drive | Solid state drive - Internal hard drive | Solid state drive - Internal hard drive |
| Capacity | 256 GB | 128 GB | 250 GB |
| Form Factor | 2.5" Ultra Slim Line | 2.5" Ultra Slim Line | 2.5" Ultra Slim Line |
| Interface | Serial ATA-600 | Serial ATA-600 | Serial ATA-600 |
| Data Transfer Rate | 600 MBps | 600 MBps | 600 MBps |
| Features | TRIM support , S.M.A.R.T. Garbage Collection technology | TRIM support , S.M.A.R.T. Garbage Collection technology | TRIM support , S.M.A.R.T. Garbage Collection technology Secure Erase function |
| Dimensions (WxDxH) | 3.9 in x 0.3 in | 3.9 in x 0.3 in | 2.7 in x 3.9 in x 0.3 in |
| Weight | 2.4 oz | 2.4 oz | 2.2 oz |
| Manufacturer Warranty | 5 years warranty | 5 years warranty | 3 years warranty |
| Full specifications | Full specifications | Full specifications | Full specifications |
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