Singular Selected
Good Connections 4521-SF015B SmartFLEX HDMI 2.1 Cable 1.5 m
Extra-flexible Ultra High Speed HDMI for tight desk and TV-wall routing without stiff cable tension.
48 GbpsHighly flexible1.5 meARC · VRR · ALLM
The Good Connections 4521-SF015B is a 1.5 m SmartFLEX Ultra High Speed HDMI 2.1 cable with 48 Gbps bandwidth, designed for consoles, gaming PCs and 8K TVs where a soft, easily bent cable is needed.
It supports 8K at 60Hz, 4K at up to 240Hz, eARC, VRR, ALLM and DSC 1.2, and uses 99.99% oxygen-free copper with triple shielding, aluminium plug housings and gold-plated contacts in a dark blue soft-PVC jacket.
Technical Specifications
| Identification |
| Part Number |
4521-SF015B |
| EAN / GTIN |
4014619461608 |
| MPN |
4521-SF015B |
| Brand |
Good Connections |
| Cable |
| Type |
Ultra High Speed HDMI (HDMI 2.1), SmartFLEX |
| Connectors |
HDMI Type A male to HDMI Type A male, gold plated |
| Length |
1.5 m |
| Conductor |
OFC copper 99.99%, 30 AWG |
| Shielding |
Triple shielded |
| Jacket |
Soft PVC, 6 mm, dark blue |
| Housing |
Aluminium |
| Performance |
| Bandwidth |
48 Gbps |
| Max Resolution |
7680x4320 @ 60Hz · 3840x2160 @ 240Hz |
| Features |
eARC, VRR, ALLM, DSC 1.2, 3D |
| Certification |
Not stated as HDMI certified by the manufacturer |
Frequently Asked Questions
What is the benefit of the SmartFLEX design?
The soft, highly flexible jacket bends easily around tight corners behind wall-mounted TVs and monitor arms, putting less strain on the HDMI ports than a stiff cable.
What is the difference between the 4521-SF015B and the 4521-020?
Both are 48 Gbps Ultra High Speed HDMI 2.1 cables. The SF015B is 1.5 m with the extra-flexible dark blue SmartFLEX jacket; the 4521-020 is a standard 2 m black cable.
Singular Expert Insight
The 4521-SF015B suits gamers and home-cinema users who want full HDMI 2.1 bandwidth in a cable that is easy to route behind a TV or on a monitor arm. If a stiffer standard cable is fine and you need a bit more length, the black 2 m Good Connections 4521-020 is the alternative.
✓ Buy it if you want 4K 120Hz+/8K with a soft cable that routes easily in tight spaces.
✕ Skip it if you only need 4K 60Hz — an HDMI 2.0 cable is cheaper.
→ Also consider Good Connections 4521-020 (2 m, black, 48 Gbps).