These two PCIe SSDs achieve their performance through integrated RAID striping across multiple discrete SSD units anyhow. A pair/trio/quad of SATA SSDs in RAID0 could provide similar performance at similar price - without using PCIe slots/lanes (which might be better used by GPU cards) and with the advantage of modular scalability (meaning initial cost can be defrayed and the array can be upgraded at any time by adding more SSDs later, and meaning that failed SSDs can be replaced/removed individually rather than losing the entire indivisible all-or-nothing unit).
The Phoenix Blade is actually a
Suzhou CoreRise Comay BladeDrive G24 Commercial SSD which G.Skill markets as an OEM partner. If you are willing to forsake G.Skill's branding (and G.Skill's very attractive black heatsink), you could gain much faster performance with the
Suzhou CoreRise Comay BladeDrive E28 Enterprise SSD (which CoreRise equips with an efficient but very ordinary heatsink). It is difficult to purchase CoreRise products through consumer channels.
Edit:
It seems doubtful that a company like CoreRise would normally offer products with black PCBs and components. Unless perhaps Asus commissioned an OEM/ODM run of ROG-engineered ROG-styled CoreRise "RAIDR Blade" cards? Oh yeah, I'd buy one, I might even buy a few!
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