# Samsung PM9E1 2TB NVMe SSD tech specifications (2026)

The Samsung PM9E1 2 TB delivers PCIe 5.0 sequential reads up to 14,500 MB/s in an M.2 2242 form factor, using Samsung's Presto controller and 236-layer V8 TLC NAND.

Quick answer: The Samsung PM9E1 2 TB is the highest-capacity PCIe 5.0 SSD available in the M.2 2242 form factor. Its 14,500 MB/s read speed and 1,200 TBW endurance rating make it the fastest compact SSD on the market for devices that cannot accommodate standard M.2 2280 modules.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 2 TB |
| Interface | M.2 5.0 x 4 |
| Controller | Samsung Presto |
| Memory type | Samsung V8 TLC |
| DRAM cache | Yes |
| Sequential read | 14500 MB/s |
| Sequential write | 12600 MB/s |
| Random read IOPS | 1800000 |
| Random write IOPS | 1600000 |
| Endurance | 1200 TBW |
| MTBF | 2000000 |
| Warranty | 3 years |

## Performance

The Samsung PM9E1 2 TB reaches sequential read speeds up to 14,500 MB/s and sequential writes up to 12,600 MB/s over PCIe 5.0 x4. Random performance is rated at approximately 1,800K read IOPS and 1,600K write IOPS. The 2 TB model benefits from more NAND dies than the 1 TB, which improves sustained write consistency and random performance at higher queue depths.

In thermally constrained environments like handheld gaming devices and thin laptops, the PM9E1 will throttle under sustained writes as the small form factor limits heat dissipation. For bursty workloads like game loading, file saving, and OS boot, the drive delivers its full rated performance. Sequential writes hold at peak speed while the SLC cache is active, then settle to the native TLC rate. The larger SLC allocation on the 2 TB model provides a more generous cache window than the 1 TB variant, making it better suited for transferring large files and game installations. Samsung's integrated power management IC helps balance performance and thermals in compact devices.

## Endurance, TBW & Warranty

As an OEM drive, the Samsung PM9E1 2 TB does not carry a standard Samsung consumer warranty. Coverage depends on the system integrator or third-party reseller. The rated endurance is 1,200 TBW for the 2 TB capacity, allowing approximately 1,095 GB of writes per day over three years. The 2 million hour MTBF rating reflects Samsung's reliability targets for this product. Buyers purchasing through resellers should verify warranty terms at the point of sale, as coverage varies significantly by vendor. Some resellers offer their own return policies and limited warranties on OEM components, typically ranging from one to three years.

## Pros and Cons

**Pros:**

- Up to 14,500 MB/s sequential read speed
- 2 TB capacity in M.2 2242 form factor
- Samsung Presto PCIe 5.0 controller
- 236-layer V8 TLC NAND
- 1,200 TBW endurance rating
- Improved sustained writes over 1 TB model
**Cons:**

- OEM drive with no direct Samsung warranty
- Limited retail availability
- Thermally constrained in compact devices
- Higher cost per GB than M.2 2280 drives
- Requires PCIe 5.0 slot for full speed


## Verdict

The Samsung PM9E1 2 TB is the highest-capacity PCIe 5.0 SSD available in the M.2 2242 form factor. Its 14,500 MB/s read speed and 1,200 TBW endurance rating make it the fastest compact SSD on the market for devices that cannot accommodate standard M.2 2280 modules.

For users of compatible laptops and handhelds, the PM9E1 2 TB provides a meaningful upgrade over PCIe 4.0 M.2 2242 drives in both speed and capacity. Desktop users and anyone with M.2 2280 slots should look at the Samsung 990 Pro 2 TB or other full-size PCIe 5.0 drives instead, which offer better value and wider retail support. The PM9E1's OEM status means limited warranty protection for retail buyers.

## Frequently Asked Questions

### Is the Samsung PM9E1 2 TB compatible with PS5?

No. The PS5 requires M.2 2280 PCIe 4.0 NVMe SSDs meeting Sony's specifications of at least 5,500 MB/s sequential read and maximum dimensions of 110 x 25 x 11.25 mm with heatsink. The PM9E1 uses the M.2 2242 form factor and PCIe 5.0 interface. While it physically fits an M.2 2280 slot, it is not designed or sold for PS5 use.

### How does the 2 TB PM9E1 compare to the 1 TB model?

Both models share the same rated sequential speeds of 14,500 MB/s read and 12,600 MB/s write. The 2 TB model has more NAND dies per channel, which provides better sustained write consistency after the SLC cache fills. Endurance doubles from 600 to 1,200 TBW. The 2 TB is the better choice if your device supports it and you need the capacity.

### What is the TBW endurance of the Samsung PM9E1 2 TB?

The Samsung PM9E1 2 TB has a 1,200 TBW endurance rating. This allows approximately 1,095 GB of writes per day over three years. For typical mobile workloads of 10 to 30 GB daily, endurance is not a concern. The drive will far outlast its expected service life in laptop and handheld use.

### Will the PM9E1 2 TB overheat in a laptop?

The PM9E1 is designed for mobile use with Samsung's integrated power management IC, but sustained writes in a thermally constrained laptop will cause thermal throttling. For typical laptop workloads like web browsing, document editing, and casual gaming, the drive stays within thermal limits. Heavy sustained writes like large video exports may trigger throttling in thin-and-light chassis.

### Can I use the PM9E1 2 TB in a desktop M.2 2280 slot?

Yes, M.2 2242 drives are electrically and physically compatible with M.2 2280 slots. You may need to reposition the mounting standoff to the 2242 position on your motherboard. The drive will operate at full PCIe 5.0 speed if the slot supports it. Note that most desktop M.2 2280 drives offer better pricing per GB.

### What devices are compatible with the Samsung PM9E1 M.2 2242?

The PM9E1 fits any device with an M.2 slot supporting the 2242 length and PCIe NVMe. This includes many ultrabooks, handheld gaming devices (ASUS ROG Ally, Lenovo Legion Go), mini PCs, NUCs, and select desktop motherboards with 2242-compatible M.2 slots. Verify your device supports M.2 2242 PCIe NVMe before buying.

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Last updated: 2026-06-13. Source: https://ssdrive.net/samsung-pm9e1-2-tb