# Anacomda i4-X Fiery Serpent 2 TB: The Reviewed Capacity of the E18 Line (2026)

The Anacomda i4-X Fiery Serpent 2 TB is the capacity NiKKTech called a very good Gen4 model, delivering the full 7,000 MB/s on Phison's E18, Kioxia TLC, and a 2 GB DRAM cache.

Quick answer: The Anacomda i4-X Fiery Serpent 2 TB is the capacity to buy from this line because it is the smallest that reaches the E18 platform's full 7,000 MB/s in both directions, and it is the model NiKKTech reviewed directly and praised as a very good Gen4 drive. It pairs the E18 and its discrete 2 GB DRAM cache with Kioxia BiCS5 TLC for consistent sustained-write behaviour that DRAM-less rivals cannot match, it carries a competitive 1,550 TBW endurance rating, and it ships with the aluminium heatsink that brand-name E18 drives like the Seagate FireCuda 530 and Sabrent Rocket 4 Plus make buyers source separately. For a gaming build, a PS5 upgrade, or a content-creation workstation where the E18's real-world consistency and the included heatsink matter, the 2 TB is a strong value against those pricier alternatives. Buyers who need only a boot drive can save with the 1 TB and accept 5,000 MB/s writes, and buyers who need maximum capacity and endurance can step up to the 4 TB or the announced 8 TB flagship. The main caveat is Anacomda's thinner Western retail and review footprint compared with Samsung or WD, which is worth weighing against the price advantage.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 2 TB |
| Interface | M.2 4.0 x 4 |
| Controller | Phison PS5018 E18 8 Channel |
| Memory type | Kioxia 112-L TLC |
| DRAM cache | Yes |
| Sequential read | 7000 MB/s |
| Sequential write | 7000 MB/s |
| Random read IOPS | 1000000 |
| Random write IOPS | 1000000 |
| Endurance | 1550 TBW |
| MTBF | 2000000 |
| Warranty | 5 years |

## Performance

Anacomda rates the i4-X Fiery Serpent 2 TB at the full 7,000 MB/s sequential reads and 7,000 MB/s sequential writes over PCIe 4.0 x4, the platform ceiling that the 2 TB reaches by populating enough NAND dies to saturate the E18's eight channels. Random I/O is rated at roughly 1,000,000 read and write IOPS, the E18 platform's established ceiling. NiKKTech's review of this exact 2 TB capacity confirmed the headline speeds and characterised the drive as a very good Gen4 model.

The E18's discrete 2 GB DDR4L-3200 DRAM cache is the performance differentiator versus the DRAM-less competition. Holding the complete flash translation layer on-drive keeps random I/O latency consistent under sustained mixed workloads, large file transfers, and DirectStorage game loading, exactly the scenarios where DRAM-less HMB designs eventually slow as the host-memory buffer comes under pressure. NiKKTech highlighted the dynamic-range SLC cache, which absorbs bursts of writes at peak speed before flushing to native TLC, and the SmartECC plus fourth-generation LDPC error correction that protects data integrity at the BiCS5 TLC's higher bit densities. The trade-off versus a DRAM-less drive is higher power draw and heat, which is why Anacomda fits the aluminium heatsink, and why the 2 TB belongs in a slot with adequate airflow or board-level cooling. For gaming, content creation, and any sustained-write workload, the E18's consistency is the reason to pay over a DRAM-less alternative.

## Endurance, TBW & Warranty

Anacomda covers the i4-X Fiery Serpent line with a five-year limited warranty, terminated at whichever arrives first between the term and the drive's TBW endurance rating. The 2 TB carries a 1,550 TBW rating, per TechPowerUp's line data, which sits in the same band as other E18 drives at this capacity and is competitive with the Samsung 980 Pro 2 TB at 1,200 TBW and the WD Black SN850X 2 TB at 1,200 TBW. At a typical consumer write load of 20 GB per day, the 1,550 TBW rating translates to roughly 212 years before the write budget is exhausted, so the five-year term expires long before the NAND approaches its rated limit. The endurance headroom matters most for buyers running sustained write workloads such as video editing, game capture, or compiling large projects, where the 2 TB's roughly 2.2x write budget over the 1 TB is a genuine practical advantage. NiKKTech's review confirmed Anacomda's 1.6 million hour MTBF rating across the i4-X line, a fleet-reliability statistic describing expected failure rates across a large population of drives rather than a lifespan promise for any individual unit. Anacomda's European market presence means warranty and RMA support is generally more accessible there than for Asia-focused brands.

## Pros and Cons

**Pros:**

- Full 7,000 MB/s reads and writes, the E18 platform ceiling
- Discrete 2 GB DDR4L DRAM cache for consistent sustained I/O
- Kioxia 112-layer BiCS5 TLC NAND
- Aluminium heatsink with graphite pad included
- 1,550 TBW endurance, competitive with brand-name E18 drives
- Five-year warranty and 1.6 million hour MTBF
**Cons:**

- Higher power draw and heat than DRAM-less alternatives
- Heatsink requires M.2 slot clearance
- Smaller Western retail and review footprint than Samsung or WD
- Exact IOPS not published by the manufacturer
- Pricier than DRAM-less Gen4 drives with similar peak reads


## Verdict

The Anacomda i4-X Fiery Serpent 2 TB is the capacity to buy from this line because it is the smallest that reaches the E18 platform's full 7,000 MB/s in both directions, and it is the model NiKKTech reviewed directly and praised as a very good Gen4 drive. It pairs the E18 and its discrete 2 GB DRAM cache with Kioxia BiCS5 TLC for consistent sustained-write behaviour that DRAM-less rivals cannot match, it carries a competitive 1,550 TBW endurance rating, and it ships with the aluminium heatsink that brand-name E18 drives like the Seagate FireCuda 530 and Sabrent Rocket 4 Plus make buyers source separately. For a gaming build, a PS5 upgrade, or a content-creation workstation where the E18's real-world consistency and the included heatsink matter, the 2 TB is a strong value against those pricier alternatives. Buyers who need only a boot drive can save with the 1 TB and accept 5,000 MB/s writes, and buyers who need maximum capacity and endurance can step up to the 4 TB or the announced 8 TB flagship. The main caveat is Anacomda's thinner Western retail and review footprint compared with Samsung or WD, which is worth weighing against the price advantage.

## Frequently Asked Questions

### Is the Anacomda i4-X Fiery Serpent 2 TB fast?

Yes. It reaches the full 7,000 MB/s sequential read and 7,000 MB/s sequential write ceiling of the Phison E18 platform, the maximum the 2 TB delivers because it populates enough NAND dies to saturate the controller's eight channels. NiKKTech reviewed this exact 2 TB capacity, confirmed the headline speeds, and called it a very good Gen4 model. Random I/O is rated at roughly 1,000,000 read and write IOPS. The discrete 2 GB DRAM cache keeps that random performance consistent under sustained mixed workloads, the main reason the i4-X outperforms DRAM-less drives under heavy load.

### Does the Anacomda i4-X 2 TB have a DRAM cache?

Yes. NiKKTech's review identified a discrete 2 GB DDR4L-3200 SDRAM chip from SK Hynix on the 2 TB model, which holds the complete flash translation layer mapping table on-drive. That is the defining difference between the i4-X and DRAM-less HMB drives like the Addlink S93 or AIGO SM170, which borrow a slice of system RAM instead. The on-drive DRAM keeps random I/O latency steady under sustained writes and heavy mixed workloads, where DRAM-less designs eventually slow as the host-memory buffer comes under pressure. This is the standard flagship-Gen4 architecture shared with the Samsung 980 Pro and WD Black SN850X.

### What is the endurance of the Anacomda i4-X 2 TB?

The 2 TB i4-X carries a 1,550 TBW endurance rating, per TechPowerUp's line data, competitive with other E18 drives and slightly above the 1,200 TBW the Samsung 980 Pro 2 TB and WD Black SN850X 2 TB carry. It scales with capacity across the line, 700 TBW on the 1 TB and 2,800 TBW on the 4 TB. At a typical 20 GB of writes per day the 2 TB would need roughly 212 years to exhaust its write budget, so the five-year warranty term expires long before the NAND approaches its limit. The headroom is most useful for buyers running sustained write workloads such as video editing or game capture.

### Is the Anacomda i4-X Fiery Serpent 2 TB good for the PS5?

Yes, and the bundled heatsink makes it particularly convenient. Sony requires an M.2 NVMe SSD recommending at least 5,500 MB/s sequential reads and fitting within 110 by 25 by 11.25 millimetres with a cooler installed. The i4-X clears the speed bar easily at 7,000 MB/s, and Anacomda ships it with an aluminium heat spreader plus graphite thermal pad, so it meets the heatsink requirement out of the box without sourcing a separate cooler. FunkyKit's review of the line highlighted the thin heat spreader as ideal for PS5 installs. The 2 TB capacity is a strong PS5 choice, holding a large game library alongside the operating system.

### Should I buy the Anacomda i4-X 1 TB, 2 TB, or 4 TB?

The 2 TB is the sweet spot because it is the smallest capacity that reaches the full 7,000 MB/s in both directions; the 1 TB writes at only 5,000 MB/s. Endurance scales with capacity, 700 TBW on the 1 TB, 1,550 TBW on the 2 TB, and 2,800 TBW on the 4 TB, all with the same E18 controller, Kioxia TLC, DRAM cache, and five-year warranty. Choose the 1 TB for a pure boot-and-games drive at the lowest price, the 2 TB for full speed with a large game library and solid write endurance, and the 4 TB when the drive must hold everything and survive heavy writes. An announced 8 TB flagship rounds out the line for maximum capacity.

### Is the Anacomda i4-X Fiery Serpent 2 TB good for content creation?

Yes, and the discrete DRAM cache is the reason it suits sustained write workloads better than DRAM-less drives. Video editing, rendering, and compiling issue heavy sustained and mixed writes that stress a drive's mapping table, and the i4-X's on-drive 2 GB DDR4L DRAM keeps random I/O latency consistent where HMB designs eventually slow. The full 7,000 MB/s sequential writes, the dynamic-range SLC cache that NiKKTech highlighted, and the 1,550 TBW endurance rating together handle large media projects comfortably. The bundled heatsink manages the E18's higher heat output under sustained load. For creators who also game, the i4-X 2 TB covers both roles well.

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Last updated: 2026-07-23. Source: https://ssdrive.net/anacomda-i4-x-firery-serpent-2-tb