shop-brand computer; custom-built PC from a local shop
Refers to a computer assembled by a small shop using off-the-shelf parts, as opposed to a mass-produced brand-name machine. Wasei-eigo; the English 'shop brand' usually means a retailer's own brand, not a custom-built PC.
wasei-eigo (Japanese-coined English), from shop brand
That shop's custom-built PCs are popular because you can choose the parts.
ショップブランドのパソコンは、大手メーカー品より安いことが多い。
Shop-brand computers are often cheaper than those from major manufacturers.
Variant with interpunct; less common but seen in some contexts.
Wasei-eigo from English 'shop' and 'brand'. In Japanese, it specifically means a computer assembled by a small shop, not a retailer's own brand.