Optimal Shop 20+4 Pin LCD Power or Optimal Shop LCD ATX Power Supply? Which Optimal Shop Model to Buy
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The optimal shop 20 4 pin LCD power vs LCD atx power supply comparison highlights two nearly identical testers. Both units are 8-in-1 ATX power supply testers featuring aluminum alloy shells and 1.8-inch LCD screens. They share the same buzzer alarm for PG failure and support multiple connectors. The primary difference lies in the physical dimensions and color. One model offers detailed size specifications, while the other is listed only by its golden finish. Both devices draw power from the 20-pin or 24-pin connector.
Key differences
| Aspect | Optimal Shop 20+4 Pin LCD Power Supply Tester | Optimal Shop LCD ATX Power Supply Tester |
|---|---|---|
| Color | Black | Golden |
| Width | 3.7 inches | not listed |
| Height | 0.8 inches | not listed |
| Length | 8.3 inches | not listed |
| Weight | 3.2 ounces | not listed |
Which one should you choose?
Choose Optimal Shop 20+4 Pin LCD Power Supply Tester if
- You need exact dimensions to ensure the tester fits in your specific storage case.
- You prefer a black finish for the device.
- You want to know the precise weight for shipping or portability calculations.
Choose Optimal Shop LCD ATX Power Supply Tester if
- You prefer a golden finish for the device.
- You do not require specific physical dimensions for storage planning.
- You are satisfied with the general description without exact measurements.
Verdict: Choose the black model if you need precise physical specifications for storage or portability. The golden model is suitable if you do not require exact dimensions. Both testers offer identical functional capabilities for checking power supply voltages.
Optimal Shop Tester Specs Compared
Connector Compatibility
Both testers support the same 8-in-1 ATX power supply testing capabilities. You can use either unit to check 20-pin IDE, 24-pin IDE, HDD, floppy disk 4-pin, PCI-e 6-pin, 4-pin, 8-pin, and SATA connectors. The Optimal Shop 20+4 Pin LCD Power Supply Tester and the Optimal Shop LCD ATX Power Supply Tester function identically in this regard. When you connect to HDD, floppy, or PCI-e ports, the indicator on the left shows output voltages for +12V, +3.3V, and +5V. There is no difference in the range of connectors supported by either device.
Display and Alarm
Each tester features a 1.8-inch LCD screen that displays output voltage. This screen is powered directly by the 20-pin or 24-pin connector. Both units include a buzzer alarm that sounds when the power supply PG signal fails. This feature helps you quickly identify issues. The display and alarm systems are standard across both models. You will get the same visual and audio feedback regardless of which color variant you choose. The protective film on the screen is a common detail for both, as the display is prone to scratching.
Build Material
Both testers are housed in an aluminum alloy shell. This material choice provides light weight, high strength, good thermal conductivity, and corrosion resistance. The build quality is consistent between the Optimal Shop 20+4 Pin LCD Power Supply Tester and the Optimal Shop LCD ATX Power Supply Tester. The aluminum construction makes the device easy to carry. There are no differences in the casing material or structural design between the two products. You get the same durable enclosure in either color option.
Physical Dimensions
The Optimal Shop 20+4 Pin LCD Power Supply Tester has specific dimensions listed as 3.7 inches in width, 0.8 inches in height, and 8.3 inches in length. It weighs 3.2 ounces. The data for the Optimal Shop LCD ATX Power Supply Tester does not list these specific measurements. Since the physical specifications are only provided for one model, you cannot confirm if the sizes differ. You may need to verify the dimensions of the golden model separately if size is a critical factor for your workspace.
Color Options
The primary visible difference between the two testers is the color. The Optimal Shop 20+4 Pin LCD Power Supply Tester comes in black. The Optimal Shop LCD ATX Power Supply Tester is available in golden. This choice is purely aesthetic and does not affect performance. Both units maintain the same black or golden aluminum alloy finish. Your selection should depend on your personal preference for the look of the device. The functional specs remain identical regardless of the color you select.
Choose the Best Optimal Shop Tester for You
Users needing precise physical dimensions
The black model provides specific dimensions: 8.3 inches long, 3.7 inches wide, and 0.8 inches high. It also weighs 3.2 ounces. These exact measurements help you plan storage or workspace layout. The golden unit lacks these size details, making the black version the safer choice for spatial planning.
Buyers who prefer a gold finish
This golden unit matches your aesthetic preference while retaining all core testing features. It supports the same 8-in-1 connector compatibility, including SATA and PCI-e. The aluminum alloy shell offers corrosion resistance, and the 1.8-inch LCD displays voltages clearly. It is a functional tester with a distinct color option.
Technicians needing full spec details
You get complete specification data with the black model, including weight and exact dimensions. This transparency allows for accurate inventory management and workspace integration. Both testers perform identically, but the black version provides the full data set you need for professional documentation without missing physical attributes.
The products compared
Optimal Shop 20+4 Pin LCD Power Supply Tester
Best for: ATX power supply voltage verification and diagnostics
- Form Factor
- ATX
- Display Type
- LCD Display
- Dimensions
- 8.3 × 3.7 × 0.8 inches
- Weight
- 3.2 ounces
View on Amazon: Optimal Shop 20+4 Pin LCD Power Supply Tester Affiliate link
This Optimal Shop unit tests ATX power supplies via a 20+4 pin connector. It features a 1.8-inch LCD screen that displays output voltages directly from the tested PSU. The aluminum alloy shell provides durability and heat dissipation. A buzzer alarm signals PG signal failures. It also supports SATA, IDE, and PCIe connectors for comprehensive diagnostics.
Pros
- 1.8-inch LCD screen for clear voltage readings
- Aluminum alloy shell for strength and thermal conductivity
- Buzzer alarm for PG signal failure detection
- Supports 20-pin, 24-pin, SATA, IDE, and PCIe connectors
Cons
- Screen requires manual removal of protective film
- Compact size may limit visibility for some users
- No mention of included carrying case or cable
Good fit if
- You need to verify ATX power supply voltages
- You want a durable aluminum alloy tester
- You require buzzer alerts for signal failures
Skip if
- You prefer a larger display for easier reading
- You need a tester with a built-in carrying case
- You do not require buzzer alarm functionality
Verdict: Optimal Shop 20+4 Pin LCD PSU Tester offers reliable voltage monitoring with a durable aluminum build. It fits technicians who need precise ATX diagnostics and audible failure alerts.
Optimal Shop LCD ATX Power Supply Tester
Best for: testing multiple connector types with voltage display
- Form Factor
- ATX
- Display Type
- LCD Display
View on Amazon: Optimal Shop LCD ATX Power Supply Tester Affiliate link
This Optimal Shop tester checks 20-pin, 24-pin, and various peripheral connectors like SATA and PCIe. Its 1.8-inch LCD displays voltage readings directly from the power supply. An aluminum alloy shell keeps it light and durable. A buzzer sounds if the PG signal fails. It is designed for users who need a compact, multi-connector tool for ATX power supply diagnostics.
Pros
- Tests 20-pin, 24-pin, SATA, PCIe, and floppy connectors
- 1.8-inch LCD screen for clear voltage readings
- Aluminum alloy shell for durability and heat dissipation
- Buzzer alarm for PG signal failure detection
Cons
- Screen is prone to scratching without protective film removal
- Only displays voltage, not amperage or wattage
- Does not test CPU 8-pin connector simultaneously with main board
Good fit if
- You need to test multiple connector types on older and newer PSUs
- You prefer a lightweight tool with an aluminum body
- You want visual voltage confirmation via an LCD screen
Skip if
- You require digital readouts for amperage or wattage
- You need a tester that supports EPS 8-pin main connectors
- You want a device with a larger, high-resolution display
Verdict: Optimal Shop 20+4 Pin LCD Power Tester is a solid choice for technicians who need to verify voltage outputs across various legacy and modern connectors. It fits users who prioritize physical durability and clear LCD readings over advanced digital metrics.
Specifications side by side
| Spec | Optimal Shop 20+4 Pin LCD Power Supply Tester | Optimal Shop LCD ATX Power Supply Tester |
|---|---|---|
| Form Factor | ATX | ATX |
| Display Type | LCD Display | LCD Display |
| Dimensions | 8.3 × 3.7 × 0.8 inches | not stated |
| Weight | 3.2 ounces | not stated |
| Color | Black | Golden |
| Model | Optimal Shop | Optimal Shop |
Frequently asked questions
Does the Optimal Shop 20+4 Pin LCD Power Supply Tester include a display?
Yes, this model features an LCD display for reading voltage values. The screen provides clear numerical output for each tested rail. This visual feedback allows you to verify power supply stability without needing external multimeters. The display is integrated into the durable aluminum alloy shell for easy viewing during diagnostics.
What is the weight of the black Optimal Shop tester?
The black Optimal Shop 20+4 Pin model weighs 3.2 ounces. This lightweight design makes it easy to handle during bench testing. You can carry it comfortably in a tool bag or keep it on your workbench without taking up much space. The compact size aids in portability for field technicians.
Are both Optimal Shop testers compatible with SATA connectors?
Yes, both units support SATA connector testing. They are 8-in-1 ATX power supply testers capable of checking multiple interface types. You can use either device to verify voltage outputs for SATA drives alongside other legacy and modern connectors. This broad compatibility ensures you can test various system components with a single tool.
Does the tester provide audio alerts for failures?
Yes, both testers include a buzzer alarm for PG failure. This audible alert notifies you immediately if the power supply does not meet standard voltage thresholds. You do not need to constantly watch the LCD screen to detect issues. The combination of visual and audio feedback enhances diagnostic accuracy and speed.
What color options are available for the Optimal Shop LCD tester?
The Optimal Shop 20+4 Pin model is available in black. The other LCD ATX Power Supply Tester comes in a golden finish. These color variations allow you to choose a unit that matches your personal preference or workspace aesthetic. The color does not affect the testing performance or durability of the aluminum alloy shell.
Is the Optimal Shop tester suitable for PCI-e connector testing?
Yes, both testers support PCI-e 6-pin connector verification. As 8-in-1 ATX testers, they cover essential modern power interfaces. You can use either device to ensure your graphics card power connections are delivering correct voltages. This feature is critical for maintaining stability in systems with dedicated graphics hardware.

