Silicon Power XS70 1TB NVMe SSD: BD Price & Review

The Silicon Power XPOWER XS70 1TB is a PCIe Gen4 x4 NVMe SSD with a genuine DRAM cache, a preinstalled aluminum heatsink, and official read/write speeds up to 7,300MB/s and 6,000MB/s. In Bangladesh, it's sold locally (for example, through Tech Land BD) at a regular price of around ৳23,000, with offer pricing seen closer to ৳20,500, and bank EMI plans available. It suits PC builders and PS5 owners in Bangladesh who want genuine flagship-tier Gen4 performance, though local pricing runs meaningfully higher than US retail due to import costs. 
The Silicon Power XPOWER XS70 1TB is a flagship-tier PCIe Gen4 NVMe SSD with a genuine DRAM cache and a preinstalled heatsink, positioned well above the brand's budget UD90 and P34A60 drives. For Bangladeshi PC builders and PS5 owners specifically, it's one of the more accessible high-performance Gen4 options sold through local retailers. This guide covers the core specs, explains what they mean in practice, and with a specific focus on the Bangladesh market  covers local pricing, financing options, and where to buy it, so you can decide whether it belongs on your shortlist

What Is the Silicon Power XPOWER XS70 1TB?

The Silicon Power XPOWER XS70 1TB (model SP01KGBP44XS7005) is a PCIe Gen4 x4 NVMe SSD built around a Phison PS5018-E18 controller, Micron 176-layer 3D TLC NAND, and a genuine 1GB DDR4-2666 DRAM cache. It's sold with a preinstalled aluminum heatsink and is explicitly marketed by Silicon Power as a gaming-oriented drive, with official PlayStation 5 storage expansion compatibility called out as a headline feature. Unlike Silicon Power's more budget-focused DRAM-less drives the UD90 and P34A60 covered elsewhere in this series — the XS70 includes a dedicated DRAM chip, positioning it as the performance-tier option in the brand's SSD lineup. In Bangladesh, it's listed under the exact retail name "Silicon Power XPOWER XS70 1TB M.2 PCIe Gen 4x4 heatsink SSD With DRAM Cache" by local retailers such as Tech Land BD, making it a recognizable, actively stocked product in the local market rather than an import-only or grey-market item.

Who Should Buy the XS70 1TB in Bangladesh?

This drive fits well for:

• PS5 owners in Bangladesh wanting a genuinely compatible storage expansion option, since its 7,300MB/s read speed clears Sony's 5,500MB/s requirement with real margin.
• PC gamers and enthusiasts building a mid-to-high-end desktop who want flagship Gen4 performance without stepping up to the newest Gen5 drives.
• Content creators working with large video files or game development assets, where sustained sequential throughput and genuine DRAM caching help maintain consistent performance.
• Buyers who value a preinstalled heatsink, avoiding the extra cost and installation hassle of buying a separate aftermarket heatsink for a bare drive.
• Bangladeshi buyers who want financing flexibility, given that at least one local retailer offers bank EMI installment plans on this exact product.

Who Should Avoid It?

It's a weaker fit for:

• Strictly budget-focused buyers — Bangladesh pricing for the XS70 1TB runs notably higher than Silicon Power's own budget-tier UD90 drives, which offer decent Gen4 speeds at a lower local cost.
• Slim laptop users — its 10.8mm heatsink thickness is taller than many bare M.2 drives, and may not fit in ultra-thin laptop M.2 bays with limited clearance; check your specific laptop's clearance before buying.
• Buyers sensitive to running temperatures — independent reviews consistently note the XS70 runs warm under sustained load even with its heatsink attached, which matters in poorly ventilated cases or Bangladesh's warmer ambient room temperatures during summer months.
• Buyers wanting the absolute latest Gen5 speeds — the XS70 is a Gen4 drive; Silicon Power's newer XS90 series offers Gen5 speeds for buyers wanting to go further, at a higher price.

Design and Build: The "Shark Gill" Heatsink

The XS70 ships with a preinstalled aluminum alloy heatsink in a black-and-silver finish, featuring angled slits Silicon Power describes as a "shark gill" design intended to maximize surface area for heat dissipation. This is a genuine functional feature rather than pure styling — PCIe Gen4 drives running at this performance tier generate meaningfully more heat than budget Gen3 or Gen4 drives, and a well-designed heatsink helps sustain peak performance for longer under load. The trade-off is thickness: at 10.8mm tall, the heatsink adds meaningful bulk compared to a bare M.2 drive, which is worth checking against your case and motherboard's M.2 slot clearance, particularly if your motherboard already includes its own M.2 heatsink shroud that the drive's own heatsink might not fit under.

Performance: Read/Write Speeds and DRAM Cache Explained

The XS70 1TB's official 7,300MB/s read and 6,000MB/s write speeds are enabled by its Phison E18 controller and genuine onboard DRAM cache, which unlike the DRAM-less designs used in Silicon Power's budget UD90 and P34A60 drives allows the drive to manage its data mapping tables directly in dedicated memory rather than borrowing system RAM, generally supporting more consistent performance under sustained or heavy workloads.

A dedicated DRAM cache (1GB of DDR4-2666 here) stores the drive's mapping table, which tracks where data physically lives on the NAND flash. This allows faster, more consistent lookups compared to DRAM-less drives relying on Host Memory Buffer (HMB) technology, particularly under heavy random-access or sustained write workloads a genuine, meaningful step up from the budget drives covered elsewhere in this series.

It's worth noting that the 1TB capacity specifically writes slower (6,000MB/s) than the 2TB and 4TB models (6,800MB/s) in the same product line, following the same general pattern seen across the SSD industry: smaller capacities have fewer NAND channels available for parallel writes.

Thermal Performance: Does It Really Run Hot?

Direct answer: Yes multiple independent reviewers have noted the XS70 runs noticeably warm during sustained use even with its preinstalled heatsink attached, though it's generally reported to avoid hitting its thermal throttle point during typical use, meaning sustained performance is maintained even if the drive itself feels hot to the touch.

This is a real, consistently reported characteristic rather than an isolated complaint Tec Powerup's review specifically noted the drive never reached its thermal throttle point despite running hot, while a separate independent review described it as "hot enough to make me feel a bit uncomfortable when resting my finger on it for longer than a few seconds. For Bangladeshi buyers, this is worth factoring in given generally warmer ambient temperatures for much of the year ensuring adequate case airflow around the M.2 slot is a sensible precaution, particularly during hot summer months without air conditioning.

Endurance and Warranty

The XS70 1TB carries a 700TBW endurance rating and a 5-year limited warranty, both clearly and consistently documented across Silicon Power's official specifications and independent reviews (unlike the endurance ambiguity noted for Silicon Power's budget UD90 and P34A60 drives elsewhere in this series). This consistency is a point in the XS70's favor for buyers who specifically want confirmed, reliable endurance figures rather than conflicting third-party estimates.

Is the XS70 1TB Worth the Money in Bangladesh?

Direct answer: For Bangladeshi PC builders and PS5 owners who specifically want flagship-tier Gen4 speed, a preinstalled heatsink, and genuine PS5 compatibility, the XS70 1TB is a reasonable and locally available choice at its typical ৳20,500–৳23,000 price range though budget-focused buyers who don't need PS5 compatibility or top-tier write speeds may find better local value in Silicon Power's own UD90 series instead.

Independent international reviews (Tec Powerup, Tom's Hardware) have consistently rated the XS70 favorably for its price-to-performance ratio at its original US launch pricing, praising its speed and included heatsink while flagging thermal behavior and bulk as its main drawbacks. Because Bangladesh retail pricing sits meaningfully higher than the drive's original pricing (a pattern common to imported PC components locally rather than unique to this drive), Bangladeshi buyers should weigh that gap against their specific need for PS5 compatibility or flagship-tier write speed, rather than assuming the same "great value" verdict from international reviews applies identically at local BD pricing.

Where to Buy the Silicon Power XS70 in Bangladesh

Monarch IT Limited is the authorized distributor of Silicon Power products in Bangladesh, making it the primary official channel through which genuine, warranty-backed Silicon Power drives — including the XS70 1TB — reach local retailers and end customers. Buyers can also find the XS70 1TB listed directly by local retail outlets such as Tech Land BD, which has offered both a discounted promotional price and bank EMI installment plans (spanning roughly 3 to 36 months across banks such as Lanka Bangla Finance, Islami Bank Bangladesh, and NCC Bank) on this exact product. For Bangladeshi buyers, purchasing through Monarch IT's authorized retail network rather than an unofficial import or reseller is a sensible way to ensure the drive is genuine, backed by Silicon Power's full 5-year warranty, and eligible for local after-sales support and RMA (return merchandise authorization) service if something goes wrong