Looking Beyond the Lrker 300W TFX Power Supply? 6 Alternatives Worth a Look
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The Lrker 300W TFX Power Supply is a straightforward replacement unit for HP Pavilion Slimline S5000 owners. It provides standard 24-pin and SATA connectors with a 300W output. You might want to look at other options if you need different dimensions, higher wattage, or specific efficiency ratings. Finding the right lrker 300w power supply compatible alternatives depends on your exact case size and power needs.
This list includes seven units chosen because their specifications overlap with the original. All listed power supplies use the TFX form factor to fit slim cases. Some offer more power, like the SilverStone 500W Gold unit, while others match the 300W output with different brands. You will find options for Dell Inspiron replacements, Lenovo ThinkCentre systems, and general small form factor builds. Each entry is ranked by how well it fits specific use cases, from budget replacements to premium efficiency upgrades. Review the specs to see which unit matches your requirements.
Comparing TFX PSU Alternatives
BackPlanePro 300W TFX Power Supply
The BackPlanePro 300W TFX Power Supply targets Dell Inspiron 530s and 531s rather than HP systems. It includes active PFC for better power factor correction, which the Lrker unit does not list. Dimensions are nearly identical, with a width of 2.56 inches versus 2.5 inches. You gain a dedicated Dell compatibility profile but lose the specific HP connector layout. Choose this if you are replacing a Dell OEM unit and want active PFC features without changing case dimensions significantly.
Apevia 300W TFX Power Supply
The Apevia 300W TFX Power Supply offers a slightly wider profile at 3.23 inches compared to the Lrker’s 2.5 inches. It maintains the same 300W output but fits a different internal space. The unit weighs 2.1 pounds, making it lighter than some competitors. You trade the narrow width for a standard TFX footprint that may fit more cases. Select this if your chassis allows for the extra width and you need a direct 300W replacement without worrying about specific OEM compatibility lists.
Lenovo ThinkCentre 210W TFX Power Supply
The Lenovo ThinkCentre 210W TFX Power Supply provides lower wattage at 210W compared to the Lrker’s 300W. It is designed specifically for older Lenovo small form factor desktops. Dimensions differ significantly, with a width of 9.7 inches, indicating a non-standard or possibly incorrect spec in the listing, but it is clearly for a different chassis type. You give up power headroom for exact Lenovo OEM compatibility. Pick this only if you are repairing a specific Lenovo ThinkCentre model that requires this exact part number and form factor.
SilverStone 500W Gold TFX Power Supply
The SilverStone 500W Gold TFX Power Supply delivers 200W more power than the Lrker unit. It features an 80 Plus Gold efficiency rating, which reduces heat and energy waste compared to the standard Lrker supply. The width is 3.4 inches, wider than the Lrker’s 2.5 inches. You gain significant performance headroom for stronger components but need a case that accommodates the larger size. Choose this if you are upgrading a TFX system beyond basic office PC requirements and need higher efficiency and power.
Be Quiet! TFX Power 3 TFX Power Supply
The Be Quiet! TFX Power 3 offers the same 300W output as the Lrker but with a width of 3.35 inches. It is designed for standard 300W TFX system replacements. You get a reputable brand name and potentially better build quality, but you lose the narrow 2.5-inch profile. The unit weighs 3.09 pounds, which is heavier than the Lrker. Select this if your case allows for the wider form factor and you prioritize brand reputation and standard TFX compatibility over the slimmest possible footprint.
MAXROB 250W TFX Power Supply
The MAXROB 250W TFX Power Supply provides less power than the Lrker’s 300W. It is intended for systems needing a 250W replacement for specific FSP models. The unit is compact and fits modest power requirements. You sacrifice 50W of output capacity for a potentially lower cost or specific FSP compatibility. Choose this if your system does not require the full 300W and you need a direct replacement for an FSP-based OEM unit in a small form factor case.
Quick picks
Our 7 picks
Lrker 300W TFX Power Supply
Best for: HP Pavilion Slimline S5000 replacement builds
- Wattage
- 300W
- Warranty
- 24-month
- Form Factor
- ATX
- Dimensions
- 3.3 × 2.5 × 6.9 inches
View on Amazon: Lrker 300W TFX Power Supply Affiliate link
This Lrker unit is a 300W TFX power supply designed for HP Pavilion Slimline S5000 systems. It features a 24-pin plus 4-pin CPU connector and two SATA power outputs. The unit measures 2.5 by 6.9 by 3.3 inches, fitting standard TFX cases. It accepts 200-240V AC input at 50-60Hz. You get a 24-month warranty for support. This model suits users needing a direct replacement for specific HP slimline desktops.
Pros
- 300W max DC output capacity
- Includes 24-pin, 4-pin, and two SATA connectors
- Compact TFX form factor dimensions
- 24-month warranty coverage
Cons
- Limited to 200-240V AC input range
- Fixed cable configuration with no modular options
- Specific compatibility restricted to HP Slimline S5000 models
Good fit if
- You need a 300W replacement for an HP Pavilion Slimline S5000
- You require a TFX form factor for a small form factor case
- You want a unit with a 24-month warranty
Skip if
- You need 80 Plus Gold efficiency ratings
- You require modular cable management
- You are building a system with higher than 300W power demands
Verdict: Lrker 300W TFX Power Supply is a straightforward replacement unit for HP Pavilion Slimline S5000 owners who need a 300W TFX supply with standard connectors. It fits users prioritizing compatibility and warranty length over efficiency certifications or modularity.
BackPlanePro 300W TFX Power Supply
Best for: Dell Inspiron 530s and 531s replacements
- Wattage
- 300W
- Fan Size
- 80mm
- Warranty
- One Year
- Form Factor
- TFX
- Dimensions
- 6.89 × 2.56 × 3.35 inches
- Weight
- 3 pounds
View on Amazon: BackPlanePro 300W TFX Power Supply Affiliate link
This BackPlanePro unit delivers 300W of power in a TFX form factor, fitting into slim MicroATX cases. It uses an 80mm fan for cooling and includes active PFC for efficient operation. The grey chassis measures 6.89 by 3.35 by 2.56 inches. It weighs 3 pounds and carries a one-year warranty. You should choose this if you need a reliable replacement for Dell Inspiron 530s or 531s systems.
Pros
- 300W output capacity
- Active PFC support
- 80mm cooling fan
- TFX form factor
Cons
- Only 80mm fan size
- One-year warranty period
- Fixed cable configuration
Good fit if
- You need a 300W replacement for Dell Inspiron 530s or 531s
- You are building a slim MicroATX system
- You require active PFC efficiency
Skip if
- You need more than 300W of power
- You require a longer warranty than one year
- You prefer a larger 120mm fan for quieter operation
Verdict: BackPlanePro 300W TFX PSU is a solid choice for users replacing power supplies in Dell Inspiron 530s or 531s desktops. It fits slim cases and provides stable power with active PFC.
Apevia 300W TFX Power Supply
Best for: Small form factor PCs needing 300W
- Wattage
- 300W
- Fan Size
- 80mm
- Form Factor
- TFX
- Dimensions
- 6.75 × 3.23 × 2.5 inches
- Weight
- 2.1 pounds
View on Amazon: Apevia 300W TFX Power Supply Affiliate link
The Apevia TFX-AP300W delivers 300W of power in a compact TFX form factor. It features an 80mm fan for forced air ventilation and supports input voltages from 115-230V AC. The unit provides specific output rails, including 12V at 20A. Its dimensions are 6.75 inches long by 3.23 inches wide. This power supply suits users needing a reliable replacement for standard TFX slots in small form factor cases.
Pros
- Standard 300W output capacity
- 80mm fan for active cooling
- Supports 115-230V AC input
- Includes all standard PSU protections
Cons
- Smaller 80mm fan compared to larger units
- Fixed cable configuration limits flexibility
- Heavier at 2.1 pounds than some competitors
Good fit if
- You need a direct replacement for an HP or Dell TFX slot
- You require 300W of power for a compact build
- You want a unit with standard voltage tolerances
Skip if
- You need more than 300W of power
- You prefer a larger 120mm fan for quieter operation
- You require modular cables for easier management
Verdict: Apevia 300W TFX Power Supply is a solid choice for small form factor builds requiring standard TFX dimensions and 300W output. It fits users who need a reliable, direct replacement for OEM power supplies in slimline PCs.
Lenovo ThinkCentre 210W TFX Power Supply
Best for: Lenovo ThinkCentre TFX replacements
- Wattage
- 210W
- Form Factor
- TFX
- Dimensions
- 1.1 × 9.7 × 6.5 inches
View on Amazon: Lenovo ThinkCentre 210W TFX Power Supply Affiliate link
This Lenovo TFX power supply delivers 210W of power for ThinkCentre systems. It measures 9.7 by 6.5 by 1.1 inches. The unit supports 100-240Vac input voltage. It fits small form factor cases requiring a TFX profile. You should choose this if you need a direct replacement for older Lenovo desktops with lower power needs.
Pros
- Provides 210W output wattage
- Uses standard TFX form factor
- Supports 100-240Vac wide input voltage
- Compact dimensions of 9.7 x 6.5 x 1.1 inches
Cons
- Lower 210W wattage compared to 300W alternatives
- Fixed cable configuration limits flexibility
- No 80 Plus efficiency certification listed
Good fit if
- You need a replacement for a Lenovo ThinkCentre desktop
- Your system requires a TFX form factor
- Your components draw less than 210W
Skip if
- You need more than 210W of power
- You require an 80 Plus Gold certified unit
- You are building a high-performance gaming PC
Verdict: Lenovo 210W TFX Power Supply is a specific replacement part for low-power ThinkCentre machines. It fits users who need exact compatibility with older Lenovo small form factor desktops.
SilverStone 500W Gold TFX Power Supply
Best for: Upgrading beyond 300W TFX limits
- Wattage
- 500W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fixed Cable
- Fan Size
- 80mm
- Form Factor
- TFX
- Dimensions
- 6.9 × 3.4 × 2.6 inches
View on Amazon: SilverStone 500W Gold TFX Power Supply Affiliate link
This Silverstone unit delivers 500W in a standard TFX form factor. It holds 80 PLUS Gold efficiency and runs continuously at 50°C. The 80mm fan operates at 18 dBA. It includes multiple protection circuits. You get fixed cables rather than modular ones. This power supply suits users needing more headroom than the 300W alternatives on this list.
Pros
- 500W continuous power output
- 80 PLUS Gold efficiency rating
- 18 dBA fan noise level
- Multiple protection circuitry
Cons
- Fixed cable design limits cable management
- Larger dimensions than 300W TFX units
- Heavier build due to higher wattage
Good fit if
- You need more than 300W for your SFF build
- You want high efficiency for lower heat output
- You prefer silent operation in a small case
Skip if
- You require modular cables for tight spaces
- You are strictly limited to a 300W power budget
- You need a smaller physical footprint than TFX
Verdict: Silverstone 500W TFX Gold PSU offers significant power headroom and efficiency for small form factor builds that exceed 300W requirements.
Be Quiet! TFX Power 3 TFX Power Supply
Best for: Standard 300W TFX system replacements
- Form Factor
- TFX
- Dimensions
- 6.89 × 3.35 × 2.56 inches
- Weight
- 3.09 pounds
View on Amazon: Be Quiet! TFX Power 3 TFX Power Supply Affiliate link
This Be Quiet! BN323 unit delivers 300W of power in a compact TFX form factor. It measures 6.89 inches long, 3.35 inches wide, and 2.56 inches high. The build weighs 3.09 pounds and features a black finish. It fits small form factor cases requiring standard TFX dimensions. You should choose this if your system needs reliable power in a tight space without extra bulk.
Pros
- Standard TFX form factor for SFF compatibility
- 300W power output capacity
- Compact dimensions: 6.89 x 3.35 x 2.56 inches
Cons
- 300W limit may not support high-end GPUs
- No mention of 80 Plus efficiency certification
- Fixed cable configuration not explicitly stated as modular
Good fit if
- You need a 300W replacement for an existing TFX system
- You are building a small form factor PC with modest power needs
- You require a standard TFX footprint for case compatibility
Skip if
- You need more than 300W of power
- You require a modular cable setup
- You need high efficiency certification like 80 Plus Gold
Verdict: Be Quiet! BN323 300W TFX is a solid choice for users needing a direct 300W TFX replacement. It fits standard small form factor cases but lacks the headroom for power-hungry components.
MAXROB 250W TFX Power Supply
Best for: TFX systems needing 250W replacement
- Wattage
- 250W
- Form Factor
- TFX
View on Amazon: MAXROB 250W TFX Power Supply Affiliate link
This MAXROB unit is a 250W TFX power supply designed as a replacement for specific FSP models. It delivers 250 watts of power in a compact TFX form factor. This makes it suitable for small form factor PCs that require a low-profile power source. You should consider this if your system needs a direct swap for a failed or insufficient unit. It is a straightforward option for basic SFF builds.
Pros
- 250W output capacity
- TFX form factor
- Compatible with FSP models
Cons
- Lower wattage than 300W alternatives
- Fixed cable configuration
- No efficiency certification listed
Good fit if
- You need a TFX form factor
- You require 250W for your build
- You are replacing an FSP unit
Skip if
- You need more than 250W
- You require modular cables
- You need 80 Plus Gold efficiency
Verdict: MAXROB 250W TFX Power Supply fits users who need a compact 250W replacement for specific FSP models. It is a practical choice for small form factor systems with modest power requirements.
Specifications side by side
| Spec | Lrker 300W TFX Power Supply | BackPlanePro 300W TFX Power Supply | Apevia 300W TFX Power Supply | Lenovo ThinkCentre 210W TFX Power Supply | SilverStone 500W Gold TFX Power Supply | Be Quiet! TFX Power 3 TFX Power Supply | MAXROB 250W TFX Power Supply |
|---|---|---|---|---|---|---|---|
| Wattage | 300W | 300W | 300W | 210W | 500W | not specified | 250W |
| Efficiency Rating | not specified | not specified | not specified | not specified | 80 PLUS Gold | not specified | not specified |
| Modularity | not specified | not specified | not specified | not specified | Fixed Cable | not specified | not specified |
| Fan Size | not specified | 80mm | 80mm | not specified | 80mm | not specified | not specified |
| Warranty | 24-month | One Year | not specified | not specified | not specified | not specified | not specified |
| Form Factor | ATX | TFX | TFX | TFX | TFX | TFX | TFX |
| Size | not specified | not specified | TFX 300W | not specified | 500W | not specified | not specified |
| Dimensions | 3.3 × 2.5 × 6.9 inches | 6.89 × 2.56 × 3.35 inches | 6.75 × 3.23 × 2.5 inches | 1.1 × 9.7 × 6.5 inches | 6.9 × 3.4 × 2.6 inches | 6.89 × 3.35 × 2.56 inches | not specified |
| Weight | not specified | 3 pounds | 2.1 pounds | not specified | not specified | 3.09 pounds | not specified |
| Model | 9053 | LYSB00CXAUQJK-CMPTRACCS | TFX-AP300W | 7823903000 | SST-TX500-G | BN323 | FSP250-50SAV(PF) TFX 250W |
| Color | not specified | Grey | Black | not specified | black (lead-free paint) | Black | not specified |
Frequently asked questions
Can I use a 500W TFX power supply in place of a 300W unit?
Yes, you can use a higher wattage TFX unit if your case allows. The SilverStone 500W Gold TFX Power Supply offers significant headroom for builds exceeding 300W requirements. Its dimensions are 3.4 inches wide, 2.6 inches high, and 6.9 inches long. Ensure your chassis has enough physical space to accommodate this slightly wider form factor.
Is the Lrker 300W TFX compatible with Dell Inspiron systems?
The Lrker unit is optimized for HP Pavilion Slimline S5000 replacements. For Dell Inspiron 530s or 531s, consider the BackPlanePro 300W TFX Power Supply instead. It is specifically noted as a solid choice for those Dell models. Both units share similar TFX dimensions, but the BackPlanePro includes active PFC for better power factor correction.
What is the difference between the Lrker and Apevia 300W TFX supplies?
Both provide 300W output in a TFX form factor for small form factor PCs. The Apevia TFX-AP300W measures 3.23 inches wide, 2.5 inches high, and 6.75 inches long. The Lrker 9053 model is 2.5 inches wide, 6.9 inches long, and 3.3 inches high. You should choose based on which physical dimensions fit your specific case interior best.
Does the SilverStone 500W TFX have an efficiency rating?
Yes, the SilverStone SST-TX500-G holds an 80 Plus Gold efficiency rating. This makes it suitable for upgrading beyond standard 300W TFX limits while maintaining energy efficiency. The unit features black lead-free paint and measures 3.4 inches wide, 2.6 inches high, and 6.9 inches long. It provides substantial power headroom for more demanding components.
Can I replace a Lenovo ThinkCentre power supply with the Lrker 300W?
It is unlikely due to significant dimension differences. The Lenovo ThinkCentre 210W TFX unit is 9.7 inches wide, 6.5 inches high, and 1.1 inches long. The Lrker 300W is 2.5 inches wide, 6.9 inches long, and 3.3 inches high. The Lenovo part is designed for specific low-power machines. You need an exact match for those older Lenovo SFF desktops.
Is the Be Quiet! TFX Power 3 suitable for high-power gaming builds?
No, it is not designed for power-hungry components. The Be Quiet! BN323 provides 300W, which fits standard small form factor cases. The verdict notes it lacks headroom for demanding hardware. It is a solid direct replacement for standard 300W TFX systems. If you need more power, look for units like the 500W SilverStone option instead.
What is the MAXROB 250W TFX power supply good for?
The MAXROB 250W TFX Power Supply is a practical choice for modest power requirements. It serves as a compact 250W replacement for specific FSP models. The model number is FSP250-50SAV(PF). It fits users who need a smaller wattage option for small form factor systems that do not require the full 300W output of other alternatives.