Syntech
Syntech USB C to USB Adapter Pack of 2, USB 3.0 to Thunderbolt 5/4 Adapter
Bottom line: The Syntech USB C to USB Adapter Pack of 2 ($7.99 on Amazon as of 2026-10-08): Zinc alloy housing with anti-interference shielding, not bare plastic; main trade-off: USB 3.0 speed only - no USB4 or Thunderbolt bandwidth.
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*Price sourced from Amazon.com. Last updated 2026-10-08. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Zinc alloy housing with anti-interference shielding, not bare plastic
- ✓ Connectors rated for up to 10,000 plug and unplug cycles
- ✓ Two adapters per pack - one for the bag, one for the desk
- ✓ Foam storage case included for travel
Cons
- ✗ USB 3.0 speed only - no USB4 or Thunderbolt bandwidth
- ✗ Female port is USB-A, so it will not accept USB-C peripherals
- ✗ Small enough to lose easily despite the foam case
- ✗ No video output - will not drive an external display
Manufacturer description
Materials and Design: The adapter is made with anti-interference zinc alloy metallic housing and minimalist design with anti-slippery embossments Connectors: Engineered for enhanced durability, the male USB C and female USB3 connectors are designed to be plugged and unplugged up to 10000 times Compatibility: This USB C to USB 3.0 adapter is compatible with iPhone 17/17e/17 Air/17 Pro/17 Pro Max and MacBook Pro after 2016 and MacBook Air after 2018 and most of the laptops, tablets and smartphones with a USB Type C port
SpecPicks Verdict
SpecPicks scored Syntech USB C to USB Adapter Pack of 2 using a rating × review-volume × price-fit model applied to published specs and reviews across the accessories category. Syntech's accessories lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for accessories of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Will this work with my MacBook Pro?
Yes - Syntech lists compatibility with MacBook Pro models from 2016 onward and MacBook Air from 2018 onward, plus most laptops, tablets, and phones with a USB-C port.
How fast is the data transfer?
The adapter carries USB 3.0 speeds through its female USB-A port. Actual throughput depends on the drive or device you plug in, since the adapter does not add speed beyond what the peripheral supports.
How many adapters come in the pack?
Two. Syntech also includes a foam container for storage and travel, so you can keep one adapter in a laptop bag and leave the other at your desk.
Can I charge my phone through it?
Yes - Syntech states you can sync or charge a phone through the adapter using a standard USB-A cable. Charging speed is set by your charger and cable, not the adapter.
How durable is it?
The housing is anti-interference zinc alloy with anti-slip embossments, and Syntech rates the male USB-C and female USB 3.0 connectors for up to 10,000 insertion cycles. Check the product listing for current warranty terms.
Key Features
- Materials and Design: The adapter is made with anti-interference zinc alloy metallic housing and minimalist design with anti-slippery embossments
- Connectors: Engineered for enhanced durability, the male USB C and female USB3 connectors are designed to be plugged and unplugged up to 10000 times
- Compatibility: This USB C to USB 3.0 adapter is compatible with iPhone 17/17e/17 Air/17 Pro/17 Pro Max and MacBook Pro after 2016 and MacBook Air after 2018 and most of the laptops, tablets and smartphones with a USB Type C port
- USB 3.0 Speed in Two: Came in two fast speed adapters in data transfer and charging with premium materials. A foam container is also included for storage and travel
- Compact and Easy to Use: Plug and play, no driver required; Simple structure, lightweight and portability; Also, you can sync or charge your phone with this USB C to USB adapter
Full Specifications
| Size | 1.08 X 0.65 X 0.32 Inch |
|---|---|
| Brand | Syntech |
| Color | Space Grey |
| Model | Mark3 |
| Warranty | 2 year |
| UnitCount | 2 |
| ReleaseDate | 2019-08-15T00:00:01Z |
| Manufacturer | Syntech |
| ItemPartNumber | MARK3_SML |
Ready to buy?
Syntech USB C to USB Adapter Pack of 2, USB 3.0 to Thunderbolt 5/4 Adapter is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-08. Price and availability subject to change.
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